Question 1

Is the isomeric alcohol polyether E-1303 harmful to humans? Does it have an impact on the environment?

Accepted Answer

Isomeric alcohol polyether E-1303 is a low-toxicity substance, classified as a skin and eye irritant under GHS standards. It has low toxicity to aquatic organisms and is readily biodegradable, making the overall risk to humans and the environment controllable under proper handling. Detailed Description Isomeric alcohol polyether E-1303 has an acute toxicity level classified as low toxicity (oral LD50 in rats > 2000 mg/kg). Under normal industrial use conditions, it does not cause acute poisoning. However, it is classified by GHS as Skin Irritation Category 2 (H315) and Serious Eye Damage/Eye Irritation Category 2A (H319). Direct contact may cause mild skin irritation and moderate eye irritation, so gloves and protective goggles should be worn during operation. Skin sensitization tests show that the product is non-sensitizing and does not cause allergic reactions. In terms of the environment, isomeric alcohol polyether E-1303 has low acute toxicity to aquatic organisms—fish LC50, algae EC50, and daphnia EC50 are all > 100 mg/L, indicating it is not highly toxic to aquatic life. More importantly, according to OECD 301 test methods, the product is readily biodegradable (BOD/COD ≥ 60% or DOC removal ≥ 70%), meaning it can be effectively decomposed by microorganisms in the natural environment without causing long-term ecological accumulation. Nevertheless, it is strictly prohibited to directly discharge wastewater containing this product into sewers, surce water, or soil. The final disposal of waste should follow local environmental regulations, and incineration is recommended. Toxicological and Ecotoxicity Parameters Test ItemTest Object/MethodResult Acute oral toxicity (LD50)Rat> 2000 mg/kg (low toxicity) Skin irritationRabbitMild irritation Eye irritationRabbitModerate irritation Skin sensitizationGuinea pigNon-sensitizing Fish acute toxicity (LC50)—> 100 mg/L (low toxicity) Algae toxicity (EC50)—> 100 mg/L (low toxicity) Daphnia toxicity (EC50)—> 100 mg/L (low toxicity) BiodegradabilityOECD 301Readily biodegradable (≥ 60% BOD/COD or ≥ 70% DOC removal) Application Suggestions In industrial and household cleaning, textile printing and dyeing, leather processing, pesticide formulations, emulsion polymerization, and other applications, the use concentration of isomeric alcohol polyether E-1303 is typically r below toxicologically relevant levels, and under normal conditions, it has minimal impact on human health. However, when preparing high-concentration stock solutions or performing dispensing operations, protective measures should still be taken. The excellent chemical stability of the product ensures that it does not readily decompose to produce harmful byproducts during storage and transportation, further reducing safety risks. Precautions Personal Protection: Wear nitrile rubber or neoprene impermeable gloves, chemical safety goggles, and appropriate protective clothing during operation. Thoroughly clean exposed areas after work. Emergency Measures: In case of skin contact, rinse immediately with plenty of water and soap for at least 15 minutes; in case of eye contact, rinse with running clean water or saline solution for at least 15 minutes and seek medical attention; if ingested, do not induce vomiting and seek medical attention immediately. Environmental Control: Do not discharge the product or wastewater containing it into sewers, surce water, or soil. Absorb leaks with sand or vermiculite, collect in sealed containers, and dispose of as hazardous industrial waste. Storage Conditions: Recommended storage temperature: 5°C to 40°C. Keep away from strong oxidizers, strong acids, and strong bases. Keep container tightly closed.

Question 2

What should I do if problems occur during the use of Isomeric Alcohol Polyether E-1303? How to obtain technical support?

Accepted Answer

When encountering problems during the use of Isomeric Alcohol Polyether E-1303, you can quickly obtain solutions by following three steps: systematic troubleshooting, contacting the Guoli Chemical technical team, and consulting official technical materials. Detailed Explanation If you encounter issues such as poor emulsification effect, abnormal foam, compatibility problems, or product stratification during the use of Isomeric Alcohol Polyether E-1303, it is recommended to first conduct on-site troubleshooting: confirm whether the product is within its shelf life, whether the storage temperature is between 5°C and 40°C, whether the container is well sealed (this product is prone to moisture absorption), and whether the compatibility of other components in the formulation and the addition sequence are reasonable. At the same time, check whether process conditions such as water hardness and pH value are within the normal range. In many cases, the problem does not lie with the product itself, but rather requires fine-tuning of the formulation or process parameters. If the problem is not resolved after on-site troubleshooting, you can directly contact the technical support team of Hai'an Guoli Chemical Co., Ltd. Guoli Chemical has a professional team of technical engineers who can provide one-on-one formulation optimization suggestions and process debugging guidance for your specific application scenarios (such as industrial cleaning, textile printing and dyeing, leather processing, pesticide formulations, emulsion polymerization, etc.). When contacting, please prepare the product batch number, problem description, formulation summary, and process conditions in advance to help technicians quickly locate the problem. In addition, it is recommended to consult the Safety Data Sheet (SDS/MSDS) and the Product Technical Data Sheet (TDS) that accompany the product, which contain detailed physical and chemical parameters, usage suggestions, and safe operation guidelines. The official website and product manual of Guoli Chemical are also regularly updated with typical application formulations and frequently asked questions, which can serve as daily references. Application Recommendations Troubleshooting directions for common problems in different application scenarios: Industrial Cleaning: If the degreasing effect is insufficient, check whether the dosage of E-1303 is appropriate (usually recommended to account for 10% to 30% of the active content in the formulation), and whether it is necessary to combine with anionic surctants for synergistic enhancement. Textile Printing and Dyeing: If the permeability is not ideal, confirm the bath ratio, temperature, and auxiliary compatibility; note that E-1303 has a low cloud point, so high-temperature processes require attention. Emulsion Polymerization: If the emulsion stability is poor, check the ratio of monomer to emulsifier, the addition rate of the initiator, and the stirring speed. Pesticide Formulations: If emulsification and dispersion are poor, it is recommended to adjust the solvent system or combine with anionic emulsifiers to improve adaptability. Precautions During operation, please wear chemical safety goggles and impermeable gloves (nitrile rubber or neoprene) to avoid direct contact with skin and eyes. In case of accidental contact, rinse the skin with plenty of water and soap for at least 15 minutes; rinse the eyes with running clean water for at least 15 minutes and seek medical attention promptly. When contacting technical support, do not omit the product batch number, which is an important basis for traceability and diagnosis.

Question 3

How to purchase Isomeric Alcohol Polyether E-1303? What is the minimum order quantity?

Accepted Answer

Isomeric Alcohol Polyether E-1303 can be purchased by directly contacting the sales team of Haian Guoli Chemical Co., Ltd. There is no public data on the minimum order quantity; it is recommended to confirm during consultation. Detailed Explanation Isomeric Alcohol Polyether E-1303 (CAS: 9043-30-5) is one of the core non-ionic surctant products of Guoli Chemical. Currently, there is no direct online purchase channel. The procurement process is usually: contact the sales department via official phone or corporate website → confirm product specifications and requirements → obtain a formal quotation → sign a purchase and sales contract → arrange shipment. Since the price of chemical raw materials is greatly affected by market fluctuations, the product quotation shall be based on the real-time quotation provided by the sales team. Regarding the minimum order quantity (MOQ), there is no public information on this parameter in the Guoli Chemical product database. Typically, chemical raw material suppliers flexibly determine the minimum order quantity based on ctors such as packaging specifications, customer type (distributor/end-user), and cooperation history. It is recommended to confirm directly with the sales team during the initial inquiry to obtain the most accurate ordering policy. Packaging Specifications Guoli Chemical provides the following standard packaging for Isomeric Alcohol Polyether E-1303 for reference when ordering: Packaging TypeSpecificationApplication Scenario Plastic Drum50kg/drumSmall batch trial, laboratory formulation development Plastic Drum200kg/drumRoutine industrial production procurement IBC ToteApproximately 1000kg/containerLarge-scale production, long-term stable supply Purchasing Process Suggestions Step 1: Clarify Requirements. Clearly define the application areas you plan to use (e.g., industrial cleaning, textile printing and dyeing, pesticide formulations, etc.) so that the sales team can recommend the most suitable product specifications and supporting solutions. Step 2: Contact Guoli Chemical. Contact the sales department and submit your procurement requirements through the official website of Haian Guoli Chemical Co., Ltd. or its publicly available business contact information. Step 3: Sample Verification. If it is your first cooperation, you can request free or paid samples for formulation verification and performance testing to ensure the product meets your process requirements before bulk procurement. Step 4: Sign Contract and Payment. After confirming specifications, quantity, price, delivery time, and shipping method, sign the formal procurement contract and pay according to the agreed method. The product is non-hazardous cargo, making transportation convenient. Precautions The storage temperature of Isomeric Alcohol Polyether E-1303 is recommended to be between 5°C and 40°C, avoiding freezing or high temperature exposure. Please consider storage conditions when ordering. This product is an industrial-grade chemical raw material and cannot be used for non-industrial purposes such as food and pharmaceuticals. Prices are time-sensitive. It is recommended to confirm and lock the order promptly after obtaining the quotation to avoid cost changes due to market fluctuations. Protective gloves and goggles must be worn during operation. For specific safety requirements, please refer to the Safety Data Sheet (SDS).

Question 4

Does the isomeric alcohol ethoxylate E-1303 meet environmental requirements? Can a test report be provided?

Accepted Answer

Isomeric alcohol ethoxylate E-1303 meets mainstream environmental requirements, with easy biodegradability and low aquatic toxicity Detailed Description According to the ecotoxicological data in the Safety Data Sheet of Guoli Chemical, isomeric alcohol ethoxylate E-1303 performs well in terms of environmental performance. Its biodegradability tested by OECD 301 method can achieve ≥60% BOD/COD or ≥70% DOC removal rate, meeting the classification standard of "readily biodegradable", which means this product can be effectively decomposed by microorganisms in the natural environment and will not accumulate in the ecosystem for a long time. In terms of aquatic ecotoxicity, the half-effective concentrations of this product for fish (LC50), algae (EC50) and daphnia (EC50) are all greater than 100 mg/L, belonging to chemicals with low toxicity to aquatic organisms. Compared with many traditional surctants (such as some linear alkylbenzene sulfonates), E-1303 has more prominent environmental friendliness. In addition, it is recommended to use incineration with tail gas treatment devices for waste disposal and strictly prohibit discharge into sewers or natural water bodies to minimize environmental impact. From the perspective of overall environmental compliance, E-1303 meets the current international basic requirements for surctant biodegradability (such as the EU Detergents Regulation EC 648/2004), making it suitable for industrial and civil formulation systems with increasingly stringent environmental requirements. Technical Parameters Environmental IndicatorTest DataTest Method/Standard BiodegradabilityReadily biodegradable (≥60% BOD/COD or ≥70% DOC removal)OECD 301 Fish Acute Toxicity (LC50)>100 mg/LStandard fish toxicity test Algae Growth Inhibition (EC50)>100 mg/LStandard algae toxicity test Daphnia Acute Immobilization (EC50)>100 mg/LStandard daphnia toxicity test Acute Oral Toxicity (Rat LD50)>2000 mg/kg (low toxicity)Toxicology test Skin Sensitization (Guinea pig)Non-sensitizingSkin sensitization test Application Suggestions Isomeric alcohol ethoxylate E-1303 can be used as an ideal surctant component for formulating environmentally friendly cleaning agents, textile auxiliaries, and pesticide preparations. Its readily biodegradable properties make it particularly suitable for products exported to markets with strict environmental requirements such as Europe and America, as well as for formulations used in sensitive ecological environments (e.g., lake basins, areas near coastal aquaculture). Notes Regarding the test report, I cannot directly provide PDF or paper documents at present. It is recommended that you contact the sales or technical support department of Guoli Chemical (please visit the official website for contact information) to apply for the product Certificate of Analysis (COA) or Safety Data Sheet (SDS), which should contain detailed test data on the above ecotoxicity and biodegradability.

Question 5

What are the advantages of isomerized alcohol ethoxylate E-1303 compared with other similar products?

Accepted Answer

Isomerized alcohol ethoxylate E-1303, with its unique branched hydrophobic structure and low EO number (n≈3), significantly outperforms linear tty alcohol ethoxylates (AEO) and isomerized alcohol ethers with higher EO numbers in terms of emulsifying ability, wetting/penetration, and low foaming properties. Detailed Description The core competitiveness of isomerized alcohol ethoxylate E-1303 stems from its two structural features: First, its hydrophobic group uses isomerized tridecanol (branched alcohol) rather than linear alcohol. The branched structure makes the molecules "looser" at the interce, allowing ster spreading and penetration while generating less foam. Second, its EO addition number is only 3, making it a low-EO nonionic surctant with an HLB value leaning towards the lipophilic end. This gives E-1303 strong directional adsorption at the oil/water interce, making it particularly effective at emulsifying oils and organic soils. Compared with the linear AEO series in our product line (such as AEO-7, AEO-12), E-1303's branched structure offers three major advantages: ① Low foaming and easy rinsing — linear alcohol ethers usually produce high and stable foam, while E-1303 generates less foam, significantly reducing water consumption and rinsing time in cleaning processes; ② Excellent chemical stability — in strong acid, strong alkali, and hard water environments, E-1303 maintains more sustained activity retention than linear AEOs; ③ Stronger penetrating power — the branched structure effectively disrupts the ordered water film on the substrate surce, allowing the working fluid to rapidly penetrate into microstructures such as fiber bundles and metal crevices. Compared with isomerized alcohol ethers with high EO numbers in the same series (such as E-1306, E-1310, E-1340), E-1303 (n≈3) has the shortest EO chain and the strongest lipophilicity. This property makes it more efficient in emulsifying heavy oil, mineral oil, and natural ts, especially suitable as a high-efficiency oil-phase emulsifier in O/W emulsion formulations. It is also often used in combination with high-EO isomerized alcohol ethers to synergistically regulate the HLB value and emulsion stability of the system. In addition, in emulsion polymerization, the short EO chain structure can anchor more effectively onto the monomer droplet surce, providing a better micelle nucleation environment for the polymerization reaction. Performance Comparison Overview Comparison Dimension Isomerized Alcohol Ethoxylate E-1303 (n≈3) Linear AEO Series (e.g., AEO-7) Isomerized Alcohol Ethoxylate E-1310 (n≈10) Hydrophobic Group Structure Branched (Isotridecanol) Linear (C12-14 alcohols) Branched (Isotridecanol) EO Number ≈3 ≈7 ≈10 HLB Tendency Predominantly lipophilic (HLB approx. 8~9) Predominantly hydrophilic (HLB approx. 12~13) Hydrophilic (HLB approx. 13~14) Foaming Property Low foam, st defoaming Medium foam, relatively stable Medium foam Penetration/Wetting Speed Very st (branched advantage) Moderate Relatively st Heavy Oil Emulsifying Ability Excellent (short EO chain matches lipophilicity) ir Good Acid/Base & Hard Water Stability Outstanding Good Outstanding Core Application Efficient oil-phase emulsifier, low-foaming wetting and penetrating agent General-purpose emulsifier and solubilizer Water-phase emulsifier, hydrophilic dispersant Note: HLB values in the table are reference ranges calculated based on EO content; actual measured data may vary slightly due to batch differences of raw materials. AEO-7 and E-1310 are similar products from our company's database; please refer to their respective product pages for specific parameters. Application Recommendations Based on the unique performance advantages of E-1303, it can be preferentially selected for the following scenarios: Industrial heavy oil cleaning: For stubborn oil stains such as mineral oil, cutting fluid, and drawing oil, the low-EO/branched combination of E-1303 can rapidly penetrate the oil film and efficiently emulsify, combined with low foaming properties to achieve high efficiency and water saving in high-pressure spray cleaning. Recommended dosage: 3%~8% of the formulation. Textile scouring/penetration processes: When the working fluid needs to quickly penetrate fiber bundles in a short time and at low temperature, the branched structure of E-1303 can significantly shorten wetting time and improve pretreatment efficiency. Leather degreasing: Its excellent lipophilicity and penetrating power can rapidly emulsify natural ts inside raw hides into tiny washable oil droplets, shortening the degreasing cycle. Emulsion polymerization emulsifier: Suitable for seed emulsion polymerization of systems such as vinyl acetate and acrylates, providing a stable nucleation environment. It is recommended to be used in combination with high-EO emulsifiers. Blending for synergy: Blending with hydrophilic isomerized alcohol ethers such as E-1310 or E-1340 in a certain ratio can precisely adjust the HLB value, balancing both initial emulsifying power and long-term storage stability of the emulsion. Precautions Skin and eye protection: According to the product safety data sheet, E-1303 is classified as GHS Category 2 skin irritant and Category 2A eye irritant (hazard statement: "

Question 6

How should Isomeric Alcohol Polyether E-1303 be stored? What is its shelf life?

Accepted Answer

Isomeric Alcohol Polyether E-1303 should be stored in a cool, dry, and well-ventilated environment. The recommended temperature is 5°C to 40°C, and the container should be kept sealed. Under recommended storage conditions, the product typically has a shelf life of 2 years. Detailed Explanation Isomeric Alcohol Polyether E-1303 is a nonionic surctant with excellent chemical stability, which does not easily deteriorate under normal storage conditions. The key points for storage are moisture prevention, sealing, and temperature control. Since the product is hygroscopic, if not sealed promptly after opening, it may absorb moisture from the air, leading to dilution of active ingredients or changes in appearance. Therefore, the container should be resealed immediately after use. Under recommended conditions (5°C to 40°C, cool and dry, sealed), the product can be stably stored for 2 years. After the shelf life, it is recommended to recheck key indicators such as appearance, pH value, cloud point, and emulsifying performance before use. Only use if the results are satisctory. If the product becomes turbid or separates due to low temperature, this is usually a reversible physical change common in nonionic surctants. Gently warming it to room temperature and stirring evenly can generally restore its usability without affecting performance. Key Storage Conditions Storage ElementSpecific Requirements Temperature RangeRecommended 5°C to 40°C, avoid freezing or high temperature exposure Environment RequirementsCool, dry, well-ventilated dedicated warehouse Container RequirementsKeep tightly sealed to prevent leakage and moisture absorption; reseal immediately after opening Isolation StorageStore separately from strong oxidizers, strong acids, strong bases, and edible chemicals; do not mix Safety cilitiesEquip storage area with spill response equipment and suitable containment materials Packaging InspectionRegularly check packaging integrity; replace or transfer to intact containers if damaged Shelf LifeApproximately 2 years under recommended storage conditions (database lacks official labeled shelf life data; this is a general reference based on industry experience) Application Recommendations To ensure optimal product performance, it is recommended to follow the "first in, first out" principle for inventory management. Before each withdrawal, verify that the packaging is intact with no leaks, and seal immediately after use. If the product has been stored for a long time near the minimum temperature (5°C), it can be moved to room temperature in advance to warm up and stirred evenly before use. Precautions Keep away from fire and heat sources. Although the product is not flammable, thermal decomposition may produce harmful gases. Empty containers may contain residues; do not use for other purposes without thorough cleaning. Wear chemical safety goggles and impermeable gloves (e.g., nitrile rubber, neoprene) during operation. For specific packaging specifications and more detailed storage conditions, please refer to the Safety Data Sheet (SDS).

Question 7

What safety precautions should be taken when using isomerized alcohol polyether E-1303?

Accepted Answer

Isomerized alcohol polyether E-1303 is a low-toxicity chemical, with main risks of skin and eye irritation. Protective equipment should be worn during operation, and it should be used in a well-ventilated area, while paying attention to proper storage and emergency handling. Hazard Overview The GHS classification of isomerized alcohol polyether E-1303 is: Skin irritation category 2 (H315) and Serious eye damage\/eye irritation category 2A (H319). The product label bears the "exclamation mark" pictogram, and the signal word is "Warning". This means the product causes skin irritation and serious eye irritation, but acute oral toxicity is low (rat LD50 >2000 mg\/kg), and it is not skin sensitizing. The product is not flammable, but may produce harmful gases when heated and decomposed. Safe Handling Precautions Personal Protective Requirements Operators should receive professional training and strictly follow operating procedures. Must wear chemical safety goggles, impermeable gloves (recommended nitrile rubber or neoprene material), and appropriate protective clothing. Thoroughly wash hands and other exposed areas after operation. Do not wear contact lenses during operation, and no eating, drinking, or smoking is allowed in the workplace. Operating Environment Requirements Should be operated in a well-ventilated area, with local exhaust ventilation if necessary, to avoid inhaling vapors or mists. Explosion-proof equipment is recommended to prevent generation and accumulation of static electricity. Empty containers may retain hazardous residues and should not be used for other purposes without thorough cleaning. Storage Conditions Store in a cool, dry, well-ventilated dedicated warehouse, away from sources of ignition and heat Keep containers tightly closed to prevent leakage and moisture absorption; reseal immediately after use Recommended storage temperature between 5°C and 40°C, avoid freezing or exposure to high temperatures and direct sunlight Keep separate from strong oxidizers, strong acids, strong bases, and food chemicals; do not mix store Storage area should be equipped with spill emergency response equipment and suitable containment materials Regularly inspect packaging integrity; replace or transfer to intact containers immediately if damage is found Emergency Response Measures Skin Contact Immediately remove contaminated clothing and rinse thoroughly with plenty of running water and soap for at least 15 minutes. If irritation persists, seek medical attention. Eye Contact Immediately lift eyelids and rinse thoroughly with plenty of running water or saline for at least 15 minutes. If wearing contact lenses and easily removable, remove them. Seek immediate medical attention. Inhalation Move quickly to fresh air, keep airway clear. If breathing is difficult, give oxygen. If breathing or heartbeat stops, immediately perform CPR and seek medical attention. Ingestion Rinse mouth with water, do not induce vomiting, seek immediate medical attention. Do not feed anything by mouth to an unconscious person. Spill Emergency Response Isolate the spill area, restrict access, eliminate all ignition sources. Small spills: absorb with inert absorbent material (e.g., sand, vermiculite) and collect in a closed container. Large spills: build dikes or dig pits for containment, transfer to tanker or dedicated collector using explosion-proof pump, recycle or dispose at a waste treatment cility. Fire Response This product is not flammable, but may produce harmful gases when heated. Firefighters must wear positive-pressure self-contained breathing apparatus and full-body protective clothing. Use dry powder, carbon dioxide, alcohol-resistant foam, or water spray as extinguishing agents, avoid directing water streams directly at the spill. Ecological and Waste Disposal This product has low toxicity to aquatic organisms (fish, algae, daphnia LC50\/EC50 all >100 mg\/L) and is readily biodegradable. However, residual waste and containers should still be treated as hazardous industrial waste, do not discharge into sewers, surce water, or soil. Incineration is recommended for disposal; empty packaging can be recycled after cleaning. For transportation, this product is classified as non-dangerous goods. When transporting, handle gently to prevent container damage, avoid rain and direct sunlight, and keep separate from oxidizers, food, etc.

Question 8

How to use Isomeric Alcohol Polyether E-1303? What is the recommended dosage?

Accepted Answer

Isomeric Alcohol Polyether E-1303 is a low-foam nonionic surctant (HLB value approximately 8). It is recommended to pre-disperse it in warm water or formulation solvent before adding it to the main system. The specific dosage varies depending on the application scenario, typically ranging from 0.5% to 10% of the total formula weight. Detailed Description Isomeric Alcohol Polyether E-1303 (CAS Number: 9043-30-5) is a nonionic surctant produced by the addition of 3 moles of ethylene oxide to isomeric tridecanol. Due to the low ethylene oxide addition number (n≈3), the product exists in a dispersed state rather than completely dissolved in water. In practical use, it is recommended to pre-mix the product with the oily components or solvents in the formulation, or slowly add it to warm water at 40~50°C under stirring to achieve a uniform working solution. Its branched hydrophobic structure endows the product with excellent wetting, penetrating, and emulsifying properties, while producing extremely low foam, making it particularly suitable for industrial cleaning processes that require quick rinsing. The product has an HLB value of 8, leaning towards the water-in-oil (W/O) emulsifier category, and performs exceptionally well in emulsion polymerization and pesticide emulsifiable concentrate formulations. The cloud point range is 30~45°C, and it may precipitate out in high-temperature systems. Therefore, when applied in high-temperature processes, attention should be paid to temperature control or the product should be compounded with high-EO number products to raise the cloud point. The product exhibits excellent chemical stability, can withstand a wide range of acidic and alkaline media and hard water conditions, and has good compatibility with anionic, cationic, and other nonionic surctants. Technical Parameters Parameter ItemValueParameter ItemValue Active Matter Content≥99%HLB ValueApprox. 8 Appearance (25°C)Colorless to light yellow liquidCloud Point30～45°C pH (1% Aqueous Solution)5.0～7.0SolubilityDispersible in water Penetration Force (0.1% Aqueous Solution)5～10 seconds (Standard Canvas Method)Foam CharacteristicsLow Foam Surce Tension25～30 mN/mIonic TypeNonionic Density (25°C)0.92～0.95 g/cm³Flash Point>150°C Data Source: Guoli Chemical Product Database Application Recommendations Pre-treatment before use: Since the product is in a dispersed state rather than completely dissolved in water, it is recommended to pre-mix E-1303 with oily components, solvents, or a small amount of warm water (40~50°C) in the formulation, then add it to the main system under stirring to ensure uniform dispersion. Reference dosages for various fields (based on industry practice, specific amounts need to be verified through experiments): Application FieldRecommended Dosage (as % of total formula)Usage Instructions Industrial Hard Surce Cleaners1%～5%Compound with anionic surctants (e.g., LAS, AES) to enhance degreasing and penetrating ability Metal Cleaners (Water-based)0.5%～3%Use in combination with alkaline additives to leverage low-foam and easy-rinsing advantages Textile Scouring Agents/Penetrants2%～8% (before dilution of working solution)Compound with anionic and phosphate ester types to enhance wetting and penetrating effects on fibers Leather Degreasing Agents3%～10%As the main emulsifier, quickly penetrate and emulsify natural oils in leather interiors Pesticide Emulsifiable Concentrates/Emulsions in Water5%～10%As a nonionic emulsifier, used in combination with anionic emulsifiers (e.g., calcium salts) Emulsion Polymerization0.5%～2% (based on monomer weight)Provides polymerization stability, works better when used synergistically with anionic emulsifiers Cosmetic Creams/Lotions0.5%～2%Aids emulsification, needs to be compounded with high HLB value emulsifiers to construct O/W systems Note: The above dosages are industry experience reference values. The actual optimal dosage should be determined through experiments based on the specific formulation system. The Guoli Chemical Product Database does not have specific dosage data for each application field. Precautions Pre-dispersion treatment: The product exists in a dispersed state rather than dissolved in water. Directly adding it to a large amount of cold water may lead to uneven dispersion. It is recommended to pre-mix before adding to the main system. Temperature control: The cloud point range is 30~45°C. At temperatures above the cloud point, the product may precipitate from water. For high-temperature applications, it is recommended to compound with high-EO number alcohol ethers (e.g., E-1307, E-1309). Safety protection: The product is mildly irritating to the skin (GHS Skin Irritation Category 2) and moderately irritating to the eyes (Eye Irritation Category 2A). During operation, wear chemical safety goggles, impermeable gloves (nitrile rubber or neoprene), and protective clothing. Storage conditions: Store in a cool, dry, and well-ventilated place. Recommended temperature is 5°C to 40°C. Protect from freezing or high-temperature exposure, and keep the container tightly sealed. Compounding test: When compounding with other surctants, it is recommended to conduct a small-scale compatibility test to confirm no abnormal phenomena such as precipitation or stratification before batch production.

Question 9

In which industries and processes is isomeric alcohol polyether E-1303 mainly used?

Accepted Answer

Isomeric alcohol polyether E-1303 is mainly used in six major industries: industrial cleaning, textile printing and dyeing, leather processing, pesticide formulations, emulsion polymerization, and personal care products. It plays a key role in core processes such as degreasing, scouring, emulsification, penetration, and wetting. Detailed description Isomeric alcohol polyether E-1303 (CAS No.: 9043-30-5) is a nonionic surctant prepared by ethoxylation of isomeric tridecanol. Its unique branched hydrophobic structure endows the product with excellent intercial activity. With outstanding emulsifying ability, remarkable wetting and penetrating properties, and low foaming characteristics, this product has become an indispensable and efficient component in many industrial formulations, widely serving multiple industry sectors. In industrial formulations, E-1303 maintains excellent chemical stability in a wide range of acidic, alkaline media, and hard water environments. It is compatible with anionic, cationic, and other nonionic surctants, providing great flexibility for complex formulation design. Its low foaming tendency gives it a significant advantage in cleaning processes that require rapid rinsing. Overview of industry and process applications Industry sectorSpecific process/applicationProduct function Industrial and household cleaningHard surce cleaning, water-based metal cleaners, textile degreasing agentsProvides excellent wetting, penetration, and emulsification capabilities, effectively removing oil and stubborn stains, suitable for high-concentration and diluted cleaning products Textile printing and dyeingScouring, penetration, leveling processesActs as a key component in scouring agents, penetrating agents, and leveling agents, promoting full fiber wetting and rapid penetration of working fluids, improving dye uptake and dyeing uniformity, reducing color spots and color differences Leather processingDegreasing, soaking processesExhibits excellent emulsifying and penetrating performance, rapidly emulsifying natural ts inside leather, helping tanning agents, tliquors, and dyes penetrate evenly, improving finished leather quality Pesticide formulationsEmulsifiable concentrates (EC), suspension concentrates (SC), oil-in-water emulsions (EW), etc.Used as emulsifier and wetting-dispersing agent, enhancing the spreading and adhesion of pesticide liquid on plant leaf surces, improving pesticide utilization and control efficacy Emulsion polymerizationEmulsion polymerization of vinyl acetate, acrylates, and other systemsAs a nonionic emulsifier, effectively reduces intercial tension between monomer and water, ensuring smooth polymerization, and imparting good mechanical and storage stability to the synthetic latex Cosmetics and personal care productsCreams, lotions, makeup removers, and other formulationsServes as a co-emulsifier and solubilizer, helping to build a fine and stable emulsion system, improving product spreadability and post-application skin feel Application suggestions When designing formulations, the ethoxylation degree (3EO) of E-1303 gives it a low HLB value, making it particularly suitable as a water-in-oil (W/O) emulsifier or for use in combination with high-HLB surctants. In metal cleaning formulations, it is recommended to use it in synergy with nonionic or anionic auxiliaries to achieve optimal degreasing and low-foaming effects. In pesticide formulations, it can serve as a core component of the emulsifier system to help build stable emulsions. It is recommended to conduct small-scale optimization tests based on different process conditions (temperature, pH, electrolyte content, etc.) to determine the optimal dosage. Store the product at 5°C-40°C, avoid freezing or exposure to high temperatures, and seal the container immediately after use to prevent moisture absorption. Precautions This product is classified under GHS as: Skin irritation category 2 (H315) and Serious eye damage/eye irritation category 2A (H319). Wear chemical safety goggles and impermeable gloves during handling. In case of contact with skin or eyes, flush with plenty of running water for at least 15 minutes. If irritation persists, seek medical attention immediately. This product is not flammable, but thermal decomposition may produce harmful gases. In case of fire, wear a positive-pressure self-contained breathing apparatus. Waste disposal should follow national and local regulations. Do not discharge into sewers or surce water. Incineration is recommended for disposal.

Question 10

What are the physical and chemical technical parameters of Isomeric Alcohol Polyether E-1303?

Accepted Answer

Isomeric Alcohol Polyether E-1303 is a nonionic surctant with a low HLB value (about 8), featuring excellent emulsifying, wetting, and penetrating properties. It appears as a colorless to light yellow liquid at room temperature and exhibits low foaming characteristics when dispersed in water. Detailed Description Isomeric Alcohol Polyether E-1303 (CAS: 9043-30-5) is a nonionic surctant produced by Guoli Chemical through ethoxylation (average 3 moles of EO) of isomeric tridecyl alcohol. Its molecular formula is C13H27O(C2H4O)nH (n≈3), with a molecular weight of approximately 332. The product appears as a colorless to light yellow liquid, with an active content ≥99% and free alcohol content ≤1%, making it a high-purity product. Due to its isomeric branched hydrophobic structure, this product exhibits outstanding intercial activity. Its HLB value is approximately 8, surce tension is as low as 25-30 mN/m, critical micelle concentration (CMC) ranges from 0.1 to 0.5 g/L, cloud point is 30-45°C, and hydroxyl value is between 165 and 175 mgKOH/g. The product has good chemical stability at room temperature, can withstand a wide range of acidic, alkaline, and hard water environments, and is classified as a low-foaming surctant. Its penetrating power (0.1% aqueous solution, standard canvas method) is 5-10 seconds. From a toxicological and environmental perspective, this product has an acute oral toxicity LD50 > 2000 mg/kg (low toxicity), mild skin irritation, moderate eye irritation, and no skin sensitization. Ecotoxicity: fish LC50, algae EC50, and daphnia EC50 are all > 100 mg/L, and it is readily biodegradable (OECD 301 method, ≥60% BOD/COD), making it an environmentally compatible product. Technical Parameters Parameter Name Technical Indicator Product NameIsomeric Alcohol Polyether E-1303 (Isotridecanol Polyoxyethylene (3) Ether) CAS Number9043-30-5 Molecular FormulaC13H27O(C2H4O)nH, n≈3 Molecular WeightApproximately 332 AppearanceColorless to Light Yellow Ionic TypeNonionic HLB Value8 Cloud Point (°C)30-45 Active Content (%)≥99 pH Value (1% Aqueous Solution)5.0-7.0 Iodine Value (gI₂/100g)≤1 Water SolubilityDispersible in Water Surce Tension (mN/m)25-30 Critical Micelle Concentration CMC (g/L)0.1-0.5 Acid Value (mgKOH/g)≤0.5 Saponification Value (mgKOH/g)≤1 Hydroxyl Value (mgKOH/g)165-175 Moisture Content (%)≤0.5 Density (g/cm³)0.92-0.95 Kinematic Viscosity (mm²/s)60-120 Refractive Index1.450-1.455 Flash Point (°C)>150 Melting Point (°C) Penetrating Power (seconds)5-10 (0.1% Aqueous Solution, Standard Canvas Method) Foam CharacteristicsLow Foaming Free Alcohol (%)≤1 Chemical StabilityStable at Room Temperature Alkali ResistanceResistant to Acids and Alkalis Heavy Metals (ppm)≤20 Arsenic (ppm)≤3 Packaging Specifications50kg Plastic Drum / 200kg Plastic Drum / IBC Tote Application Recommendations Based on its HLB value of about 8, Isomeric Alcohol Polyether E-1303 is particularly suitable for use as a W/O emulsifier and wetting/penetrating agent. In industrial metal cleaning and hard surce cleaning formulations, a recommended dosage is 4%-15%; in textile printing and dyeing as a scouring penetrant, a concentration of 0.5-3 g/L in working solution is suggested; in pesticide emulsifiable concentrate formulations, it works best when paired with surctants of higher HLB values, with a recommended amount of 5%-12% of the total formula. Since the product disperses in water to form an emulsion and has a low cloud point (30-45°C), its suitability should be carefully evaluated in formulations requiring a completely transparent aqueous solution. Precautions Storage Conditions: Recommended storage temperature: 5°C to 40°C. Keep away from fire and heat sources. Avoid freezing or exposure to high temperatures. Keep containers tightly sealed to prevent moisture absorption. Safety Protection: GHS classification: Skin irritation Category 2, Serious eye irritation Category 2A. Wear chemical safety goggles and impermeable gloves during operation. Avoid direct contact with eyes and skin. Eye Contact Treatment: If product enters the eyes, immediately lift eyelids and rinse with plenty of running water for at least 15 minutes. Remove contact lenses if present and continue rinsing. Seek medical attention if eye irritation persists. Product is Dispersible Nonionic: It does not form a clear solution in water but rather a dispersion. The turbidity requirements of the formulation should be considered during design.

Isotridecanol Ethoxylate E-1303

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Isomeric Alcohol Ethoxylate E-1303 Application Fields

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Property	Value
CAS No.	9043-30-5
Molecular Formula	C13H27O(C2H4O)nH, n≈3
Appearance	Colorless to pale yellow liquid
Ionic Type	Nonionic
Avg. Molecular Weight	Approx. 332
Cloud Point	30-45
Active Content	≥99
pH Value(1%)	5.0~7.0
pH Value(5%)	5.0~7.0
Iodine Value	≤1
Solubility	Dispersible in water; soluble in organic solvents
Surface Tension	25-30
CMC	0.1-0.5
Acid Value	≤0.5
Saponification Value	≤1
Hydroxyl Value	165-175
Moisture	≤0.5
Density	0.92-0.95
Kinematic Viscosity	60-120
Refractive Index	1.450-1.455
Flash Point	>150
Hygroscopicity	Low
Chemical Stability	Stable at room temperature
Penetration	5-10 s (0.1% aq., standard canvas disc)
Foam Property	Low foam
Alkali Resistance	Acid and alkali resistant
Unsaturation	≤0.1
Melting Point	<-10
Low Shear Viscosity	60-120
Solid Content	≥99
Free Alcohol	≤1
Heavy Metal	≤20
Arsenic	≤3

Isotridecanol Ethoxylate E-1303

Product Details

Applications

Properties

Safety

Product Overview

Performance Features

Packaging and Storage

Isomeric Alcohol Ethoxylate E-1303 Application Fields

Product Properties

Safety

GHS

Handling

Storage

First Aid

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