Question 1

Is C13 alcohol ethoxylate E-1340 harmful to humans? Does it have an impact on the environment?

Accepted Answer

C13 alcohol ethoxylate E-1340 has moderate health hazards to humans (harmful if swallowed, skin irritation, serious eye damage). It is harmful to aquatic organisms with long-lasting effects, but it is readily biodegradable and does not have significant bioaccumulative potential. Detailed Description C13 alcohol ethoxylate E-1340 (isotridecanol ethoxylate (13) ether) is a non-ionic surctant. According to the Globally Harmonized System of Classification and Labeling of Chemicals (GHS), this product poses clear health risks to humans. Its acute oral toxicity is low to moderate (rat LD50 300–2000 mg/kg), and accidental ingestion can cause harm. Notably, this product poses a serious eye damage risk (GHS Category 1) that may cause irreversible eye injury; it also has moderate skin irritation, causing redness, swelling, and other reactions upon contact. Based on available data, this product is not a respiratory or skin sensitizer. Personal protective equipment such as protective gloves and goggles must be worn during handling, and the workplace should be well-ventilated. In terms of the environment, C13 alcohol ethoxylate E-1340 exhibits certain toxicity to aquatic organisms. The fish 96h LC50, Daphnia 48h EC50, and algae 72h EC50 are all in the range of 1–10 mg/L, making it harmful to aquatic organisms with long-lasting effects (GHS Aquatic Chronic Toxicity Category 3). This means that if large quantities are discharged untreated into natural water bodies, it may have adverse effects on aquatic ecosystems. However, this product shows greater than 60% ready biodegradability within 28 days (BOD/COD method), indicating that it is readily biodegradable and does not persist in the environment. Moreover, it is not expected to have significant bioaccumulation potential and will not accumulate through the food chain. Overall, the hazards of C13 alcohol ethoxylate E-1340 to humans and the environment can be controlled within acceptable limits through standard industrial practices with proper handling and effective protective measures. Key risk control points include: avoiding direct skin and eye contact, strictly prohibiting ingestion, and preventing untreated waste liquid from being discharged directly into water environments. Waste disposal should be carried out by qualified professional institutions, and the product should not be discharged into sewers or the environment. Technical Parameters Toxicological Parameters Acute Oral Toxicity (Rat, LD50)300 – 2000 mg/kg Skin Irritation (Rabbit)Moderate irritation, causing redness and swelling Eye Damage (Rabbit)Severe irritation, may cause irreversible eye damage Skin SensitizationNo classification evidence Respiratory SensitizationNo classification evidence Ecological Parameters Fish Acute Toxicity (96h LC50)1 – 10 mg/L Daphnia Acute Toxicity (48h EC50)1 – 10 mg/L Algae Acute Toxicity (72h EC50)1 – 10 mg/L Ready Biodegradability (28 days)Greater than 60% (Readily biodegradable) BioaccumulationNot significant GHS Hazard Classification H302 — Acute Toxicity (Oral, Category 4)Harmful if swallowed H315 — Skin Corrosion/Irritation (Category 2)Causes skin irritation H318 — Serious Eye Damage/Eye Irritation (Category 1)Causes serious eye damage H412 — Aquatic Chronic Toxicity (Category 3)Harmful to aquatic life with long lasting effects Application Recommendations Despite the hazards mentioned above, the value of C13 alcohol ethoxylate E-1340 in industrial formulations cannot be ignored. This product is widely used in textile printing and dyeing, industrial cleaning, leather processing, papermaking, water-based coatings, agrochemicals, metalworking fluids, and emulsion polymerization. At normal use concentrations (e.g., after dilution in formulations), its direct hazard level is significantly reduced. It is recommended that downstream users fully consider the overall safety of the finished product during formulation design and communicate safety information downstream through SDS documents. Precautions Personal Protection: Chemical safety goggles (eye goggles) and chemical-resistant protective gloves (e.g., nitrile rubber gloves) must be worn during operation, along with protective clothing. Ventilation Requirements: Operate in a well-ventilated area. Use local exhaust ventilation if necessary. Prohibited Actions: Do not eat, drink, or smoke during operation; avoid generating aerosols or mists. Eye Contact First Aid: Immediately rinse with plenty of water, keeping eyelids open, for at least 15 minutes, and seek immediate medical attention — this is the most important first aid measure. Spill Handling: Prevent spills from entering sewers and surce waters. Collect and dispose of using inert absorbent materials (sand, vermiculite). Waste Disposal: Do not discharge into sewers or the environment. Must be disposed of by a qualified waste treatment cility. Storage Conditions: Between 5°C and 40°C, keep container tightly closed, away from strong oxidizing agents, strong acids, and strong bases.

Question 2

What should I do if problems occur during the use of C13 Alcohol Polyether E-1340? How to obtain technical support?

Accepted Answer

When encountering problems with C13 Alcohol Polyether E-1340, it is recommended to first conduct a systematic self-check to eliminate basic issues. If the problem cannot be resolved, please contact the technical team of Haian Guoli Chemical Co., Ltd. directly for professional support. Detailed Explanation During the use of C13 Alcohol Polyether E-1340 (Isotridecanol Polyoxyethylene (13) Ether), common issues usually include poor emulsification, product layering, incomplete dissolution, or abnormal foam. When encountering these problems, do not rush to change the formula; instead, conduct a systematic investigation from the following dimensions: First, check the storage condition and physicochemical indicators of the product itself. The storage temperature of C13 Alcohol Polyether E-1340 should be controlled between 5°C and 40°C. At low temperatures, the product may become cloudy or cream, as its cloud point range is 60~70°C and the melting point is below 0°C. If stored in a cold environment, the product's viscosity will significantly increase or even solidify, leading to difficulties in feeding or uneven dispersion. At this point, simply place the product in a warm environment to restore it to room temperature (approximately 20~25°C) and stir thoroughly to restore normal use without affecting product performance. Additionally, check whether the container is sealed. Long-term exposure to air may cause the product to absorb moisture or become contaminated. Excessive water content (this product requires moisture content ≤0.5%) can affect the accuracy of the formula. Second, verify the formulation conditions and process parameters. The HLB value of C13 Alcohol Polyether E-1340 is 13.5~14.5, which classifies it as a hydrophilic nonionic surctant suitable for O/W emulsion systems. If separation or instability occurs when used as an emulsifier, confirm whether the required HLB value of the oil phase matches the HLB value of this product. If not, it needs to be compounded with low-HLB emulsifiers. Also, pay attention to the system's pH value. The pH range of a 1% aqueous solution of this product is 5.5~7.5, and it has good chemical stability under acidic, alkaline, and hard water conditions. However, if strong oxidants are present in the system or charge conflicts occur with anionic additives, overall performance may be affected. In terms of dosage, the critical micelle concentration (CMC) is approximately 0.005% (mass fraction). If the dosage is below the CMC, the surce activity effect is not significant. Third, if the above self-checks have been completed but the problem remains unresolved, it is recommended to compile detailed information about the specific application scenario, formula composition, description of the abnormal phenomenon, and product batch number, and then contact the technical department through the official channels of Haian Guoli Chemical Co., Ltd. Guoli Chemical has a professional technical team that can provide targeted formulation optimization suggestions and troubleshooting guidance for different application fields such as textile printing and dyeing, industrial cleaning, leather processing, papermaking, water-based coatings, agricultural chemicals, metalworking fluids, and emulsion polymerization. Technical Parameters The following are the key technical parameters of C13 Alcohol Polyether E-1340 for reference during problem troubleshooting (data source: Guoli Chemical Product Database): ParameterSpecification/Value AppearanceColorless to slightly yellow transparent liquid Ionic TypeNonionic HLB Value13.5~14.5 Cloud Point60~70°C Active Content≥99% pH Value (1% Aqueous Solution)5.5~7.5 Hydroxyl Value58~68 Acid Value≤0.5 mg KOH/g Moisture≤0.5% Surce Tension (0.1% Aqueous Solution, 25°C)Approximately 30 mN/m CMC (Critical Micelle Concentration)Approximately 0.005% (mass fraction) Density (20°C)Approximately 1.05 g/cm³ Kinematic Viscosity (25°C)Approximately 150 mm²/s Flash Point (Closed Cup)＞150°C Chemical StabilityStable in acids, alkalis, and hard water Foam CharacteristicsLow foaming Application Suggestions Based on specific application scenarios, the following are common problem prevention and adjustment ideas: Poor Emulsification: Check whether the required HLB value of the oil phase matches the HLB value of E-1340 (13.5~14.5). If necessary, compound with low-HLB emulsifiers; ensure appropriate shear speed and temperature during the emulsification process. Insufficient Dissolution: This product is easily soluble in water. It is recommended to slowly add it to water under stirring to avoid forming gel clumps from a single large addition; the water temperature should be maintained between 20~40°C. Abnormal Foam: This product is a low-foaming surctant. If excessive foam occurs in the system, it may be related to other high-foaming components in the formula. Check the compounded ingredients. Layering or Cloudiness After Storage: Confirm whether the storage temperature is below 5°C. The increase in viscosity at low temperatures is a normal physical change. Warming to room temperature and stirring thoroughly will restore it. Large Particle Size in Emulsion Polymerization: Check the dosage of E-1340 and the initiation rate. The CMC is approximately 0.005%. Ensure sufficient micelle formation. How to Obtain Guoli Chemical Technical Support Official Channels: It is recommended to contact the technical department or after-sales service department via the official website of Haian Guoli Chemical Co., Ltd. (www.guolichem.com) or official enterprise contact methods. Please prepare the product batch number, purchase date, detailed description of the problem, and formula information in advance so that technicians can quickly locate the issue. Safety Data Sheet (SDS): Carefully read the SDS before use to understand the product's hazard classification (H302 Harmful if swallowed, H315 Causes skin irritation, H318 Causes serious eye damage, H412 Harmful to aquatic life) and personal protection requirements. Wear chemical safety goggles and nitrile rubber protective gloves during operation, and maintain good ventilation. Sample Re-inspection: If a batch quality issue is suspected, you can request the quality inspection report (COA) for that batch from Guoli Chemical, or send a sample for re-analysis. This product is packaged in 20 kg woven bags or 25 kg kraft paper bags. The batch number is on the packaging label. Precautions Before the problem is resolved, it is recommended to suspend the use of this batch to avoid causing more extensive formula ilure or material loss. Do not directly contact the product without taking protective measures. If it gets into the eyes, immediately rinse with plenty of water or saline for at least 15 minutes and seek medical attention immediately. For disposal, do not discharge into sewers or the environment; hand over to qualified waste disposal agencies.

Question 3

How to purchase C13 alcohol ethoxylate E-1340? What is the minimum order quantity?

Accepted Answer

To purchase C13 alcohol ethoxylate E-1340, please directly contact the sales team of Guoli Chemical for the latest quotation and ordering details. Currently, the database does not show a clear minimum order quantity (MOQ) value. Detailed Description C13 alcohol ethoxylate E-1340 (CAS No.: 9043-30-5) is a high-performance nonionic surctant sold by Guoli Chemical, and the product is normally supplied. According to the database information, the quotation unit for this product is RMB / ton, but the specific unit price is not currently listed. The price information is marked as "The above prices are for reference only; for the latest quotation, please contact the sales team." This means the actual transaction price will fluctuate based on ctors such as order quantity, market conditions, and specific cooperation methods. Regarding ordering channels, it is recommended that you contact the Guoli Chemical sales team directly through the following methods: Visit the official website of Haian Guoli Chemical Co., Ltd., submit a procurement requirement form on the "Contact Us" or "Product Inquiry" page; or call the company's official sales hotline to make an inquiry. Since the database does not include the sales hotline number, please obtain the latest contact information through the official website. When submitting an inquiry, be sure to clearly specify the required product name (C13 alcohol ethoxylate E-1340 / Trideceth-13), estimated quantity, and target application field, so that the sales team can provide you with more accurate quotations and technical support. Basic Product Information ItemContent Product NameC13 alcohol ethoxylate E-1340 (Trideceth-13) CAS No.9043-30-5 Chemical NameIsotridecyl alcohol polyoxyethylene (13) ether Ionic TypeNonionic AppearanceColorless to slightly yellow transparent liquid Active Content≥99% Standard Packaging20kg woven bag / 25kg kraft paper bag Quotation UnitRMB / ton Minimum Order QuantityNo clear data currently available, please consult sales for confirmation Purchasing Recommendations As a professional surctant manucturer in China, Guoli Chemical supports both small batch trials and large batch ordering. If you are using this product for the first time, it is recommended to first apply for a free sample for formulation compatibility and performance testing, and then place a formal order after confirming that it meets your needs. The standard packaging specifications are 20kg woven bags and 25kg kraft paper bags; orders are usually placed in multiples of these packaging specifications. If special packaging specifications (such as ton drums, liquid bags, and other bulk forms) are required, you can also propose this when making an inquiry, and the sales team will evaluate the feasibility. For large batch purchases, it is recommended to negotiate an annual framework agreement or a long-term supply contract with the sales team, which can usually provide more competitive pricing and stable supply assurance. Additionally, this product is not classified as dangerous goods, so transportation is not subject to dangerous goods regulations, and logistics costs are relatively controllable. Notes When making inquiries, please ensure you specify the product CAS No. 9043-30-5 and product code E-1340 to avoid confusion with other models. Although this product is not classified as dangerous goods, it is still a chemical. When handling, you must follow the requirements of the Safety Data Sheet (SDS) and wear protective gloves and goggles. Storage temperature should be controlled between 5°C and 40°C, avoiding freezing and high temperature exposure to sunlight. The final quotation is subject to the formal quotation document issued by the Guoli Chemical sales team. The data in this article is for reference only.

Question 4

Is C13 alcohol ethoxylate E-1340 compliant with environmental requirements? Can a test report be provided?

Accepted Answer

C13 alcohol ethoxylate E-1340 is an easily biodegradable surctant with low bioaccumulation risk. However, due to its acute toxicity to aquatic organisms (H412), strict regulatory requirements must be followed in terms of discharge control. Regarding the test report, the product database does not currently contain specific COA files. It is recommended to directly contact the sales department of Guoli Chemical to obtain batch test reports. Detailed Explanation C13 alcohol ethoxylate E-1340 (Isotridecyl alcohol polyoxyethylene (13) ether, CAS No. 9043-30-5) exhibits dual aspects in environmental compliance. From a degradability perspective, this product shows good environmental potential: according to Section 7 of the product SDS (Ecological Information), its ready biodegradability is greater than 60% (BOD\/COD, 28 days), classifying it as an easily biodegradable substance. This means it can be effectively decomposed by microorganisms in wastewater treatment systems and will not persist in the environment for long periods. Additionally, this product has low bioaccumulation potential, with no significant tendency for biomagnification through the food chain. However, special attention should be paid to the ct that this product is classified under GHS as Aquatic Chronic Category 3 (H412): harmful to aquatic life with long-lasting effects. Specifically, the fish 96-hour LC50 is 1–10 mg\/L, the daphnia 48-hour EC50 is 1–10 mg\/L, and the algae 72-hour EC50 is 1–10 mg\/L, indicating acute hazards to aquatic ecosystems at higher concentrations. Therefore, during production and use, strict measures must be taken to prevent untreated wastewater from being directly discharged into natural water bodies. Treatment through standardized wastewater treatment cilities to achieve degradation and compliance discharge is essential. Current environmental regulations for surctants in various countries primarily focus on biodegradability as a core indicator. According to the EU REACH regulation and China's GB\/T 15818-2018 Test Method for Biodegradability of Surctants, primary biodegradability ≥80% or ultimate biodegradability ≥60% (28 days) is generally considered the threshold for compliance. The biodegradability of C13 alcohol ethoxylate E-1340 is greater than 60%, meeting the basic requirements of relevant regulations. However, whether it specifically meets certification standards for end-use applications (such as Eco-label, EU Ecolabel, etc.) requires further evaluation based on complete ecotoxicological assessment reports and the overall formulation of the end product. Technical Parameters (Ecotoxicology Related) ParameterTest ValueDescription Ready Biodegradability (28-day BOD\/COD)>60%Easily biodegradable substance Acute Fish Toxicity (96h LC50)1–10 mg\/LHarmful to aquatic life Acute Daphnia Toxicity (48h EC50)1–10 mg\/LHarmful to aquatic life Acute Algae Toxicity (72h EC50)1–10 mg\/LHarmful to aquatic life Bioaccumulation PotentialNot significantLow bioaccumulation risk GHS Aquatic Toxicity ClassificationAquatic Chronic Category 3, H412Harmful to aquatic life with long-lasting effects Application Recommendations In application scenarios with high usage volumes such as textile dyeing and printing, industrial cleaning, and leather processing, it is recommended that enterprises incorporate the use of C13 alcohol ethoxylate E-1340 into their overall environmental management system. Industrial wastewater should be treated using activated sludge or biofilm biochemical treatment processes before discharge. After treatment, the wastewater should be regularly monitored for COD and toxicity indicators to ensure compliance with local environmental discharge standards. In end-use applications such as pesticide formulations and water-based coatings, the dosage should be rationally controlled during formulation design to balance performance and environmental requirements. Regarding Test Reports The Guoli Chemical product database currently does not include batch test reports (COA) or third-party environmental test reports for C13 alcohol ethoxylate E-1340. To obtain specific test reports for this product (such as biodegradability test reports, heavy metal test reports, VOC test reports, etc.), it is recommended that you directly contact the sales or technical support team of Guoli Chemical, providing the list of required test items and purchasing needs. The relevant department will provide the corresponding quality inspection report based on the product batch. Typically, Guoli Chemical issues a COA for each batch, covering routine indicators such as appearance, hydroxyl value, moisture content, pH value, etc. For special environmental tests (such as OECD 301B biodegradation tests, etc.), third-party testing can be arranged based on customer requirements. Precautions This product has a GHS classification with a hazard statement H412. Users are responsible for conducting compliance assessments according to the environmental regulations of their country or region, ensuring that wastewater discharge meets permit requirements. The above ecological data is sourced from Section 7 of the product Safety Data Sheet (SDS) and is prepared based on existing knowledge. It is for reference only and does not constitute an absolute guarantee of the product's environmental performance. Packaging waste should be disposed of as hazardous waste. Contaminated packaging containers must be thoroughly cleaned before recycling and should not be discarded arbitrarily into the environment.

Question 5

What are the advantages of C13 alcohol polyether E-1340 compared to other similar products?

Accepted Answer

C13 alcohol polyether E-1340 has the longest EO chain length (n≈13) and the highest HLB value in the same series, exhibiting the most outstanding performance in emulsion stability and dispersion persistence. It is the flagship product with the strongest hydrophilicity and the widest application coverage in the isomeric tridecyl alcohol polyether series. Detailed Description Guoli Chemical's isomeric tridecyl alcohol polyether series includes four core models: E-1303 (n≈3), E-1306 (n≈6), E-1310 (n≈10), and E-1340 (n≈13). The C13 alcohol polyether E-1340 molecules have polymerized approximately 13 ethylene oxide (EO) units, making it the product with the highest EO addition in the series. As the EO chain length increases, the hydrophilicity, cloud point, and HLB value of the product gradually improve. Therefore, E-1340 has significant advantages in the preparation of oil-in-water (O/W) emulsions, wetting and dispersion in aqueous systems, and formulation scenarios requiring high hydrophilicity. Compared with traditional linear tty alcohol polyoxyethylene ethers (such as AEO series) on the market and alkylphenol polyoxyethylene ethers (such as NP/TX series) that are gradually being banned, C13 alcohol polyether E-1340 uses isomeric tridecyl alcohol as the initiator. The branched structure endows the product with a lower pour point, better low-temperature fluidity, and stronger wetting and penetrating power, while maintaining stable chemical performance in hard water and acidic/alkaline environments. In addition, E-1340 does not contain alkylphenol structures, complying with APEO-free environmental regulations, and has a 28-day biodegradation rate greater than 60%, making it an easily biodegradable substance with significant advantages in environmental compliance. In applications with strict requirements for emulsion stability, such as emulsion polymerization and pesticide emulsifiable concentrates, E-1340, with its longer EO segments providing a steric hindrance effect, can effectively prevent droplet coalescence and generate fine and long-term stable emulsion systems. In contrast, E-1303 and E-1306, due to their weaker hydrophilicity, are more suitable for water-in-oil (W/O) emulsification or as auxiliary components in compound systems; although E-1310 is already water-soluble, it still lls short of E-1340 in emulsion particle size control and long-term system stability. Parameter Comparison of Isomeric Tridecyl Alcohol Polyether Series Product Model EO Number (approx.) Appearance Hydrophilicity HLB Value (theoretical) Core Functional Positioning Isomeric alcohol polyether E-1303 3 Colorless to light yellow liquid Lipophilic About 8~9 W/O emulsification, oil-based dispersion Isomeric tridecyl alcohol polyether E-1306 6 Colorless to slightly yellow transparent liquid Moderate About 10~11 Penetration wetting, scouring agent Isomeric tridecyl alcohol polyether E-1310 10 Colorless to light yellow transparent liquid Good About 12~13 General emulsification, cleaning and decontamination C13 alcohol polyether E-1340 13~14 Colorless to slightly yellow transparent liquid or paste Excellent About 14~15 Long-term emulsification, efficient dispersion and stabilization Summary of Core Advantages of E-1340 1. Excellent emulsion stability: The longer EO segments provide a strong steric hindrance effect, resulting in finer emulsion particle size and better stability, especially suitable as the main emulsifier in emulsion polymerization and as a highly efficient emulsifier for pesticide emulsifiable concentrates. 2. Outstanding dispersion persistence: In water-based coatings, inks, and paper deinking applications, E-1340 can effectively prevent reaggregation and sedimentation of pigment particles and ink particles, maintaining long-term uniformity of the dispersion system, which is difficult to achieve with low-EO-number products. 3. Wide tolerance to acids, alkalis, and hard water: Its non-ionic structure allows it to maintain stable performance in acidic, alkaline, and hard water conditions, without being affected by calcium and magnesium ions like anionic surctants. 4. Low foaming and easy rinsing characteristics: In industrial cleaning and textile scouring processes, E-1340 exhibits controllable low foaming properties, which cilitates water-saving rinsing and improves process efficiency. 5. Environmental compliance: It does not contain alkylphenol structures (APEO-free), has a biodegradation rate exceeding 60% (28 days), meets EU REACH regulations and increasingly stringent domestic environmental requirements, and can serve as an ideal replacement for the phased-out NP/TX series surctants. Application Recommendations If the core requirements of your formulation are high emulsifying power, long-term dispersion stability, and broad compatibility (e.g., water-based coating dispersion

Question 6

How to store C13 Alcohol Polyether E-1340? What is the shelf life?

Accepted Answer

C13 Alcohol Polyether E-1340 should be stored in a cool, dry, and well-ventilated warehouse, with temperature controlled between 5°C and 40°C, and containers kept tightly closed. Regarding shelf life, there is no official shelf life data for this product in the product database. Generally, similar nonionic surctants are recommended to be used within 1-2 years under proper storage conditions. Detailed Description C13 Alcohol Polyether E-1340 (iso-tridecanol polyoxyethylene (13) ether) is a nonionic surctant, and its storage management directly affects product performance and effectiveness. This product has good chemical stability, but to ensure quality, standardized storage conditions must be followed. The primary principle is sealed, light-protected, temperature and humidity controlled to prevent quality degradation such as oxidation, moisture absorption, or stratification due to prolonged exposure to unsuitable environments. The choice of storage environment is particularly critical. The warehouse should be cool, dry, and well-ventilated, away from sources of ignition, heat, and incompatible materials such as strong oxidizers, strong acids, and strong alkalis. The product is packaged in special sealed containers. After each use, the container should be tightly closed immediately to minimize contact time with air. It is recommended to set up containment dikes or trays in the storage area to promptly contain any leaks and prevent the product from spreading into drainage systems, surce water, and groundwater, which also complies with its ecological safety protection requirements of H412 (Harmful to aquatic life with long lasting effects). Regarding shelf life, the product database for C13 Alcohol Polyether E-1340 does not have an official shelf life marked. Referring to industry practice, similar iso-alcohol polyoxyethylene ether nonionic surctants, when in original sealed packaging and strictly following the above storage conditions, are generally recommended to be used within 12 to 24 months to ensure optimal performance in core functions such as emulsification, wetting, and dispersion. It is recommended that users establish a "first-in, first-out" inventory management system, and before first use after long-term storage, inspect the product appearance (for any abnormalities such as stratification, discoloration, increased turbidity, etc.), and conduct small-scale tests to confirm performance indicators if necessary. Summary of Storage Conditions Storage ElementSpecific Requirements Temperature range5°C to 40°C, prevent freezing and overheating Environmental requirementsCool, dry, well-ventilated dedicated warehouse Container conditionAlways keep tightly closed, seal immediately after use Materials to avoidIgnition sources, heat sources, strong oxidizers, strong acids, strong alkalis Leak preventionSet up containment dikes or trays, away from drainage systems and water bodies Transportation requirementsPrevent container damage, sun and rain exposure, keep ventilated and dry Application Recommendations To ensure that the product maintains optimal performance throughout its usage cycle, it is recommended that users: establish a product inbound date ledger and implement a first-in, first-out inventory turnover system; regularly check the sealing of packaging containers, and replace or prioritize use of containers if damage is found; if the product experiences turbidity or stratification due to low temperature, it can be gently stirred evenly at room temperature before use, which usually does not affect product quality, but repeated freeze-thaw cycles should be avoided. Precautions This product is not classified as dangerous goods and is not subject to hazardous materials regulations for normal transportation, but care should still be taken to prevent container damage and exposure to sun and rain. Empty containers may contain residual product vapor or liquid; before thorough cleaning, do not perform hot work such as welding or cutting. If the product appearance shows obvious abnormalities after long-term storage (such as severe discoloration, odor, irreversible stratification, etc.), discontinue use and perform quality testing. Wear protective gloves and goggles during operation and sampling to prevent skin and eye contact (H315: Skin irritation; H318: Serious eye damage).

Question 7

What safety precautions should be noted when using C13 alcohol polyether E-1340?

Accepted Answer

C13 alcohol polyether E-1340 is a low to moderate toxicity chemical, with main risks including skin irritation, serious eye damage, and harm from swallowing. Protective equipment must be worn during operation, and contact with the body and environment should be avoided. Detailed Description C13 alcohol polyether E-1340 (isotridecanol polyoxyethylene (13) ether) is a nonionic surctant. Although its flash point is above 150°C, it is non-flammable and non-explosive, its GHS hazard classification indicates clear health and ecological risks. According to the Safety Data Sheet (SDS), this product has an acute oral toxicity (rat LD50) of 300 to 2000 mg/kg, classified as low to moderate toxicity; it causes moderate skin irritation in rabbits and irreversible serious eye damage (Category 1) in rabbits. For the environment, this product is harmful to aquatic organisms with long-lasting effects: fish 96h LC50, Daphnia 48h EC50, and algae 72h EC50 are all in the range of 1 to 10 mg/L. Fortunately, its ready biodegradability is greater than 60% (BOD/COD, 28 days), making it readily biodegradable, and it is not expected to have significant bioaccumulation potential. Overall, as long as operating procedures are strictly followed, personal protection is properly worn, and waste is appropriately handled, C13 alcohol polyether E-1340 can be used safely. The following safety precautions cover a complete guide from personal protection to emergency response. Safety Precautions I. Personal Protective Equipment (PPE) Requirements Eye protection: Certified chemical safety goggles must be worn. This product can cause serious eye damage (H318), and ordinary glasses are insufficient for protection. Hand protection: Wear chemical-resistant protective gloves, such as nitrile rubber gloves, to avoid direct skin contact. Body protection: Wear appropriate protective clothing to avoid exposed skin. Respiratory protection: Operate in well-ventilated areas. Use local exhaust ventilation if necessary to avoid inhalation of vapors or mists. II. Operating Procedures Do not eat, drink, or smoke during operation. Wash hands and exposed skin thoroughly after operation. Avoid contact with eyes, skin, and clothing. Use non-sparking tools and equipment to prevent generation of aerosols or mist. Empty containers may contain residual product vapor or liquid. Do not perform hot work such as welding, cutting, or other heat-generating operations until the container has been thoroughly cleaned. III. Storage Requirements Store in a cool, dry, well-ventilated dedicated warehouse. Temperature should be controlled between 5°C and 40°C to prevent freezing or overheating, which may degrade quality. Keep containers tightly closed. Keep away from ignition sources and heat sources. Avoid mixing storage with incompatible materials such as strong oxidizers, strong acids, and strong bases. Storage areas should be equipped with dikes or spill containment pallets to prevent leakage. Keep away from drains, surce water, and groundwater. Take measures to prevent spills from reaching these areas. Emergency Response Emergency TypeAction Skin ContactImmediately remove contaminated clothing. Rinse skin with plenty of water and soap for at least 15 minutes. If irritation persists, seek medical attention. Eye ContactImmediately flush eyes with plenty of water or saline solution for at least 15 minutes while holding eyelids open. Immediately call a poison control center or seek medical attention. InhalationMove the person to fresh air. Keep them calm and warm. If breathing is difficult, administer oxygen; if breathing stops, immediately perform artificial respiration and seek medical attention. IngestionRinse mouth. Do NOT induce vomiting. Immediately drink 1-2 glasses of water to dilute and seek medical attention immediately. FireUse carbon dioxide, dry powder, alcohol-resistant foam, or water spray to extinguish fire. At high temperatures, irritating or toxic fumes (carbon monoxide, carbon dioxide) may be produced. Firefighters must wear self-contained positive-pressure breathing apparatus and full protective clothing. Leak/SpillImmediately isolate the spill area. Wear protective equipment. For small spills, use inert absorbent materials (sand, vermiculite) to absorb; for large spills, first pump the liquid, then treat residues with absorbent materials and dispose as hazardous waste. Prevent spill from entering drains, surce water, and groundwater. Disposal Dispose of in accordance with local, national, and international regulations through a licensed waste treatment cility. Do not discharge into drains or the environment. Contaminated packaging containers should be emptied of residues, thoroughly cleaned, and then recycled or disposed of according to regulations. For transportation, this product is not classified as dangerous goods and is not subject to dangerous goods transport regulations; however, during transport, containers should be protected from breakage, direct sunlight, and rain, and kept in a ventilated, dry condition.

Question 8

How to use C13 Alcohol Polyether E-1340? What is the recommended dosage?

Accepted Answer

Before using C13 Alcohol Polyether E-1340, it is essential to fully understand its dispersion/dissolution methods in different application fields. The Guoli Chemical database does not provide a unified standard dosage for various application scenarios. The recommended dosage is typically 1% to 10% of the total formulation, which must be determined through experiments based on the specific system. Detailed Description C13 Alcohol Polyether E-1340 (Isotridecanol polyoxyethylene (13) ether) is a nonionic surctant with an HLB value in the range of 13.5 to 14.5. It is easily soluble in water and appears as a colorless to slightly yellow transparent liquid or paste at room temperature. It is usually added directly to the aqueous phase with stirring for dispersion, or it can be pre-mixed with the oil phase before emulsification. Since the product has a cloud point of approximately 60 to 70°C, care should be taken during heating operations not to exceed this temperature range, to avoid affecting emulsification efficiency and system stability. The product features low foaming characteristics, performing exceptionally well in cleaning formulations that require quick rinsing or foam suppression. In practical operation, it is recommended to pre-dilute C13 Alcohol Polyether E-1340 with deionized water or aqueous components in the formulation to a concentration of 10% to 20%, stir until fully dissolved, and then add it to the main reactor or mixing tank for combination with other ingredients. For emulsion polymerization processes, it can be used as a monomer emulsifier in pre-emulsion preparation; in pesticide emulsifiable concentrate or emulsion formulations, it is usually compounded with anionic emulsifiers (such as calcium salts) to achieve better emulsification stability. This product has excellent chemical stability, maintaining stable performance under acidic, alkaline, and hard water conditions, offering strong adaptability. Technical Parameters ParameterValue/RangeParameterValue/Range Appearance (25°C)Colorless to slightly yellow transparent liquidHLB Value13.5~14.5 Active Content≥99%Cloud Point (1% aqueous solution)60~70°C Hydroxyl Value58~68 mg KOH/gpH of 1% Aqueous Solution5.5~7.5 Surce Tension (0.1% aqueous solution, 25°C)Approx. 30 mN/mCritical Micelle Concentration (CMC)Approx. 0.005% (by weight) Density (20°C)Approx. 1.05 g/cm³Kinematic Viscosity (25°C)Approx. 150 mm²/s Moisture Content≤0.5%Acid Value≤0.5 mg KOH/g Free Alcohol≤1%Flash Point (Closed Cup)>150°C Note: The above data are sourced from the Guoli Chemical product database. Application Recommendations Based on the HLB value and performance characteristics of C13 Alcohol Polyether E-1340, the following are reference dosages for various fields (expressed as a percentage of the total formulation weight; actual dosage should be verified through experiments): Textile Scouring Agent/Penetrant: Recommended dosage 2%~8%. Add directly in the pretreatment bath, utilizing its excellent wetting and penetrating ability to help remove cotton wax, size, and other impurities. Industrial Hard Surce Cleaner: Recommended dosage 1%~5%. Combine with anionic surctants (such as LAS, AES) and builders to enhance emulsification and removal of oil and grease; low foaming property cilitates high-pressure spraying and quick rinsing. Leather Degreasing Agent: Recommended dosage 3%~8%. Use alone or in combination with solvents in the degreasing process, providing strong emulsification and removal of natural ts. Wetting and Dispersing Agent for Waterborne Coatings/Inks: Recommended dosage 0.2%~1% (based on pigment/filler weight). Add during the grinding stage to rapidly wet the surce of pigment particles, preventing flocculation and sedimentation. Pesticide Emulsifiable Concentrate/Emulsion: As an emulsifier component, recommended dosage 5%~12%. Usually compounded with anionic emulsifiers in a certain ratio to obtain stable emulsion preparations and good spreading performance of the spray liquid. Metalworking Fluid/Cutting Fluid: Recommended dosage 2%~6%. Provides lubrication, cleaning, and some auxiliary anti-rust effects in semi-synthetic or full-synthetic formulations. Emulsion Polymerization: Recommended dosage 0.5%~2% (based on monomer weight). Used as a primary or auxiliary emulsifier to obtain polymer emulsions with fine and uniform particle size. Precautions Eye protection is the highest priority: This product is classified as GHS Category 1 for eye damage (H318, causes serious eye damage). Chemical safety goggles must be worn during operation. If splashed into eyes, immediately rinse with plenty of water for at least 15 minutes and seek medical attention. Wear chemical-resistant protective gloves and protective clothing to avoid skin contact (H315, causes skin irritation). When preparing aqueous solutions, it is recommended to stir and dissolve at room temperature to 40°C, avoiding prolonged heating above the cloud point temperature (60~70°C) to prevent product precipitation from affecting performance. Inhalation of vapor or mist may cause discomfort; operate in a well-ventilated area, and use local exhaust ventilation if necessary. Do not discharge waste directly into drains or water bodies (H412, harmful to aquatic life with long-lasting effects). Dispose of through qualified waste treatment cilities in compliance with regulations.

Question 9

What are the main industries and processes where C13 Alcohol Ethoxylate E-1340 is used?

Accepted Answer

C13 Alcohol Ethoxylate E-1340 (Isotridecanol polyoxyethylene (13) ether) is widely used in eight major industries, including textile printing and dyeing, industrial cleaning, leather processing, papermaking, water-based coatings, agricultural chemicals, metalworking fluids, and emulsion polymerization. With its excellent emulsifying, wetting, penetrating, and dispersing properties, it plays a key role in various process stages. Detailed Description C13 Alcohol Ethoxylate E-1340 is a classic high-performance nonionic surctant produced by the addition of isotridecanol with 13 moles of ethylene oxide. Its unique branched hydrophobic structure gives it outstanding wetting and penetrating abilities as well as emulsifying and dispersing performance. It also exhibits good chemical stability under acidic, alkaline, and hard water conditions, making it an indispensable auxiliary component in many industrial formulations. This product has particularly mature applications in the textile printing and dyeing industry. In the pretreatment stage, it can be used as a scouring agent and penetrant to effectively remove natural impurities such as wax and pectin from cotton fibers; in the dyeing stage, it acts as a leveling agent to ensure uniform dye uptake and prevent uneven coloring. In the field of industrial cleaning, it effectively emulsifies and disperses various grease and dirt, suitable for hard surce cleaning and degreasing of metal parts, with the advantages of low foaming and easy rinsing. In addition, it is widely used in leather degreasing, paper deinking, pesticide emulsification, and coating wetting and dispersion. In terms of product form, E-1340 appears as a colorless to slightly yellow transparent liquid or paste at room temperature, with a moderate HLB value (approximately 13~14) and good hydrophilicity. It can be used directly or compounded with other surctants, offering strong formulation adaptability. Special attention should be paid to the ct that this product poses a risk of serious eye damage (H318), so protective goggles and other protective equipment must be worn during operation. Technical Parameters ParameterDescription Chemical NameIsotridecanol polyoxyethylene (13) ether CAS Number9043-30-5 Product TypeNonionic surctant EO Number13 AppearanceColorless to slightly yellow transparent liquid or paste HLB Value (Reference)Approximately 13~14 Ionic TypeNonionic Chemical StabilityResistant to acids, alkalis, and hard water Flash Point>150°C Acute Oral Toxicity (LD50)300～2000 mg/kg BiodegradabilityRapidly biodegradable (BOD/COD >60%, 28 days) Application Recommendations 1. Textile Printing and Dyeing Auxiliaries &mdash; Used as scouring agent, penetrant, and leveling agent. In pretreatment formulations, the recommended dosage is 5%~15%, effectively improving bric whiteness and capillary effect; when used as a leveling agent in dyeing, the recommended dosage is 0.5~2 g/L to prevent uneven coloring and streaks. 2. Industrial and Institutional Cleaning Agents &mdash; Used for hard surce cleaning and metal parts degreasing. It can be compounded with anionic surctants (such as LAS, AES) with a recommended dosage of 3%~10%, providing excellent oil removal performance and easy rinsing characteristics. 3. Leather Processing &mdash; Used as a main degreasing agent component in the degreasing process, recommended dosage 0.5%~2% (based on hide weight); in tliquoring emulsification, it serves as an emulsifying carrier for the tliquoring agent, promoting uniform oil penetration and improving the softness of the finished leather. 4. Papermaking Chemicals &mdash; In the deinking process of waste paper, it promotes the separation of ink from fibers and prevents ink redeposition, recommended dosage 0.1%~0.5%; it can also be used for cleaning and maintenance of paper machine felts. 5. Water-Based Coatings and Inks &mdash; Used as a wetting and dispersing agent for pigments and fillers, recommended dosage 0.5%~2% of the pigment amount, effectively preventing flocculation and sedimentation, and improving storage stability of the system. 6. Agricultural Chemicals &mdash; Used for preparing emulsifiers in pesticide emulsifiable concentrates (EC) and oil-in-water emulsions (EW), generally used in combination with anionic emulsifiers (such as calcium salts), recommended total emulsifier dosage 5%~15%; in tank-mix adjuvants, it can enhance wetting and spreading of the spray liquid, added at 0.05%~0.2%. 7. Metalworking Fluids &mdash; Provides lubrication and cleaning effects in semi-synthetic/full synthetic cutting fluids, recommended dosage 3%~8%; in alkaline cleaners, it acts as a penetrating and emulsifying component to quickly remove processing oils from metal surces. 8. Emulsion Polymerization &mdash; Used as an emulsifying stabilizer in emulsion polymerization systems such as acrylates and styrene, can be used alone or compounded with anionic emulsifiers, recommended dosage 1%~4% of the monomer weight, beneficial for obtaining a polymer latex with fine and uniform particle size distribution. Precautions Eye Protection: This product can cause serious eye damage (H318). Certified chemical safety goggles must be worn during operation to avoid any eye contact. Skin Protection: Causes skin irritation (H315). It is recommended to wear chemically resistant gloves such as nitrile rubber, and wash hands thoroughly after handling. Inhalation Protection: Maintain good ventilation in the workplace, and use local exhaust ventilation if necessary to avoid inhaling mists. Storage Conditions: Recommended storage temperature 5°C~40°C, avoid freezing and high temperatures, keep containers tightly sealed, and keep away from strong oxidizing agents. Environmental Protection: Harmful to aquatic life (H412). Do not discharge into drains or surce waters, and waste liquids should be disposed of by qualified agencies. First Aid: If in eyes, rinse immediately with plenty of water for at least 15 minutes and seek medical attention; if ingested, do not induce vomiting, rinse mouth and drink warm water, then seek medical attention immediately.

Question 10

What are the physicochemical and technical parameters of C13 alcohol polyether E-1340?

Accepted Answer

Comprehensive physicochemical and technical parameters of C13 alcohol polyether E-1340: HLB value 13.5-14.5, cloud point 60~70°C, easily soluble in water, pH value of 1% aqueous solution 5.5~7.5, nonionic surctant Detailed Description C13 alcohol polyether E-1340 (CAS No.: 9043-30-5) has the chemical name isotridecanol polyoxyethylene (13) ether, molecular formula C13H27(OCH2CH2)nOH (n≈13~14), approximate molecular weight 790 (when n=13). The product appears as colorless to slightly yellow transparent liquid, with a melting point below 0°C, and remains in a flowable liquid state at room temperature. This product belongs to nonionic surctants. With 13 ethylene oxide (EO) addition units in the molecule, it achieves a good balance between hydrophilicity and lipophilicity, making it suitable for a wide range of industrial formulations. The core performance parameters of this product are outstanding: HLB value between 13.5~14.5, lling into the hydrophilic emulsifier range; cloud point range 60~70°C, which is the characteristic phase transition range for nonionic surctants at this temperature; surce tension of 0.1% aqueous solution approximately 30 mN/m (25°C); critical micelle concentration (CMC) approximately 0.005% (by weight), indicating that it can significantly reduce intercial tension at very low concentrations, with excellent wetting and penetration efficiency. The product maintains good chemical stability in acidic, alkaline, and hard water environments, and exhibits low foaming properties, suitable for applications requiring rapid rinsing. From the quality index perspective, the C13 alcohol polyether E-1340 produced by Guoli Chemical has an active content ≥99%, moisture ≤0.5%, free alcohol content ≤1%, hydroxyl value range 58~68 mg KOH/g, acid value ≤0.5 mg KOH/g, heavy metals (as Pb) ≤10 mg/kg, arsenic content ≤2 mg/kg, indicating high product purity and strict impurity control. In terms of ecotoxicology, the product has a rapid biodegradability greater than 60% (28-day BOD/COD), belongs to readily biodegradable substances, and has low bioaccumulation potential. However, it should be noted that it is harmful to aquatic organisms (fish 96h LC50 of 1~10 mg/L), and direct discharge into water bodies should be avoided. Technical Parameters Parameter CategoryParameter NameValue / DescriptionData Source Basic InformationCAS No.9043-30-5Guoli Chemical Product Database Molecular FormulaC13H27(OCH2CH2)nOH (n≈13~14)Guoli Chemical Product Database Molecular WeightApprox. 790 (n=13)Guoli Chemical Product Database AppearanceColorless to slightly yellow transparent liquidGuoli Chemical Product Database Physical PropertiesDensity (20°C)Approx. 1.05 g/cm³Guoli Chemical Product Database Kinematic viscosity (25°C)Approx. 150 mm²/sGuoli Chemical Product Database Low shear viscosity (25°C)Approx. 150 mPa·sGuoli Chemical Product Database Refractive index (20°C)1.455~1.460Guoli Chemical Product Database Melting point<0°CGuoli Chemical Product Database Flash point (closed cup)>150°CGuoli Chemical Product Database Cloud point60~70°CGuoli Chemical Product Database HygroscopicityLowGuoli Chemical Product Database Intercial Chemical PropertiesIonic typeNonionicGuoli Chemical Product Database HLB value13.5~14.5Guoli Chemical Product Database Surce tension (0.1% aqueous solution, 25°C)Approx. 30 mN/mGuoli Chemical Product Database Critical micelle concentration (CMC)Approx. 0.005% (by weight)Guoli Chemical Product Database Foaming characteristicsLow foamingGuoli Chemical Product Database SolubilityEasily soluble in waterGuoli Chemical Product Database Chemical stabilityStable in acid, alkali, and hard waterGuoli Chemical Product Database Alkali resistanceGoodGuoli Chemical Product Database UnsaturationNoneGuoli Chemical Product Database Quality IndexActive content≥99%Guoli Chemical Product Database pH value (1% aqueous solution)5.5~7.5Guoli Chemical Product Database pH value (5% aqueous solution)5.5~7.5Guoli Chemical Product Database Moisture content≤0.5%Guoli Chemical Product Database Hydroxyl value58~68 mg KOH/gGuoli Chemical Product Database Acid value≤0.5 mg KOH/gGuoli Chemical Product Database Saponification value≤1 mg KOH/gGuoli Chemical Product Database Iodine value≤1Guoli Chemical Product Database Free alcohol≤1%Guoli Chemical Product Database Safety and EnvironmentHeavy metals (as Pb)≤10 mg/kgGuoli Chemical Product Database Arsenic (As)≤2 mg/kgGuoli Chemical Product Database PackagingPackaging specification20kg woven bag / 25kg kraft paper bagGuoli Chemical Product Database Application Recommendations Based on its HLB value of 13.5~14.5 and cloud point of 60~70°C, C13 alcohol polyether E-1340 is particularly suitable for applications requiring O/W (oil-in-water) emulsification</

C13 Alcohol Ethoxylate E-1340

Product Details

Applications

Properties

Safety

Product Overview

Performance Features

Packaging and Storage

Textile Dyeing and Printing Auxiliaries

Industrial and Public Facilities Cleaners

Leather Processing Auxiliaries

Papermaking Chemicals

Water-based Coatings and Inks Wetting Dispersant

Agrochemicals

Metalworking Fluids

Emulsion Polymerization Stabilizing Emulsifier

Product Properties

Safety

GHS

Handling

Storage

First Aid

Related Products

Property	Value
CAS No.	9043-30-5
Molecular Formula	C13H27(OCH2CH2)nOH (n≈13~14)
Appearance	White to pale yellow solid
Ionic Type	Nonionic
Avg. Molecular Weight	Approx. 790 (n=13)
Cloud Point	60~70
Active Content	≥99
pH Value(1%)	5.5~7.5
pH Value(5%)	5.5~7.5
Iodine Value	≤1
Solubility	Readily soluble in water
Surface Tension	~30 (0.1%aq. soln., 25°C, mN/m)
CMC	~0.005% (mass fraction)
Acid Value	≤0.5 mg KOH/g
Saponification Value	≤1 mg KOH/g
Hydroxyl Value	58~68
Moisture	≤0.5
Density	~1.05 g/cm³ (20°C)
Kinematic Viscosity	~150 mm²/s (25°C)
Refractive Index	1.455-1.460 (20°C)
Flash Point	>150°C (closed cup)
Hygroscopicity	Low
Chemical Stability	Stable in acid, alkali and hard water
Foam Property	Low foam
Alkali Resistance	Good
Melting Point	<0°C
Low Shear Viscosity	~150 mPa·s (25°C)
Solid Content	≥99
Free Alcohol	≤1%
Heavy Metal	≤10 mg/kg (as Pb)
Arsenic	≤2 mg/kg

C13 Alcohol Ethoxylate E-1340

Product Details

Applications

Properties

Safety

Product Overview

Performance Features

Packaging and Storage

Textile Dyeing and Printing Auxiliaries

Industrial and Public Facilities Cleaners

Leather Processing Auxiliaries

Papermaking Chemicals

Water-based Coatings and Inks Wetting Dispersant

Agrochemicals

Metalworking Fluids

Emulsion Polymerization Stabilizing Emulsifier

Product Properties

Safety

GHS

Handling

Storage

First Aid

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