Question 1

Is castor oil polyoxyethylene ether EL-80 harmful to the human body? Does it have any impact on the environment?

Accepted Answer

Castor oil polyoxyethylene ether EL-80 is a low-toxicity non-hazardous chemical that poses minimal harm to the human body under normal use conditions, but high concentrations or prolonged exposure may cause skin and eye irritation; it has low environmental impact and is a ultimately biodegradable substance with low aquatic toxicity. Detailed Description Castor oil polyoxyethylene ether EL-80 is a nonionic surctant synthesized by the condensation of natural castor oil with ethylene oxide. Its flash point is above 150°C (closed cup method), and it is not classified as a flammable liquid, allowing transportation under general chemical conditions. Under normal industrial use conditions, the product poses a low risk to human health, but basic safety operating procedures should still be followed. From a toxicological perspective, the product itself is not a highly toxic or acutely toxic substance. However, direct contact with the concentrated product or prolonged exposure to its oil mist or aerosol may cause some irritation to the skin, eyes, and respiratory tract. The product exhibits low acute toxicity but should not be ingested or allowed to enter open wounds. Regarding the environment, the product demonstrates good biodegradability in rapid biodegradation tests such as OECD 301B, with a degradation rate of over 70% in 28 days, classifying it as a ultimately biodegradable substance. It has low acute toxicity to aquatic organisms (48-hour EC50 for Daphnia magna > 100 mg/L), but direct discharge of untreated product into water bodies, soil, or drainage systems should be strictly avoided to prevent short-term ecological impacts from localized high concentrations. Human Exposure Risks and First Aid Measures Exposure RoutePotential EffectsFirst Aid Measures Skin contactMay cause mild irritation or detting; repeated or prolonged contact may cause skin drynessImmediately remove contaminated clothing and wash skin thoroughly with plenty of soap and water for at least 15 minutes; seek medical advice if irritation or rash occurs. Eye contactMay cause eye irritation, redness, discomfortRinse gently with plenty of running water or saline for at least 15 minutes, lifting upper and lower eyelids; do not rub; if irritation persists, seek immediate ophthalmological treatment. InhalationOil mist from heating or agitation may irritate the respiratory tractMove the affected person to fresh air immediately and keep the airway clear; if discomfort occurs, seek medical attention immediately. IngestionMay cause gastrointestinal discomfortRinse mouth with water; do not induce vomiting; seek medical attention immediately and show the product container or label. Ecological Impact Data Ecological IndicatorData/AssessmentDescription BiodegradabilityDegradation rate ≥70% in 28 days (OECD 301B)Classified as ultimately biodegradable; not prone to long-term accumulation in the environment. Aquatic toxicity (Daphnia magna)48-hour EC50 > 100 mg/LLow acute aquatic toxicity; classified as low-toxicity level. Bioaccumulation potentialExpected to be lowHigh molecular weight and water solubility; not prone to bioaccumulation in organisms. Environmental discharge recommendationsProhibition of direct dischargeMust not be discharged into water bodies, soil, or drainage systems without treatment; waste disposal must comply with local regulations. Usage Recommendations To ensure personal safety and environmental compliance, the following operating practices are recommended for industrial use: maintain good ventilation in the work area to avoid generation of aerosols or sprays; wear nitrile rubber gloves (thickness ≥0.11 mm) and chemical safety goggles during operation; add ce shield if there is a risk of splashing, and wear chemical-resistant protective clothing. Eating, drinking, and smoking are prohibited in the workplace. Thoroughly wash hands and any exposed skin after operation. For storage, keep the product in a cool (recommended 5–35°C), dry, and well-ventilated warehouse, keep the container tightly sealed, and keep away from strong oxidizers, strong acids, strong bases, and other incompatible substances. The product is hygroscopic; reseal the container as soon as possible after opening. Under unopened conditions, the shelf life is 24 months from the date of manucture. Precautions Although this product is not classified as a hazardous chemical, large spills may make the floor extremely slippery; immediately set up warning signs and take anti-slip measures. In case of fire, suitable extinguishing media include carbon dioxide, dry powder, alcohol-resistant foam, or water fog; do not use a straight water stream. Waste disposal should be carried out by incineration in licensed waste treatment cilities or handed over to qualified waste treatment agencies, complying with all applicable local regulations. For complete information on hazards, toxicology, and ecotoxicology, refer to the Safety Data Sheet (SDS). Users should conduct a risk assessment based on specific working conditions. Although the product is biodegradable and has low aquatic toxicity, any form of untreated direct discharge should be avoided to prevent environmental impact from localized high concentrations.

Question 2

What should I do if problems occur during the use of Castor Oil Ethoxylate EL-80? How can I obtain technical support?

Accepted Answer

First, immediately stop using it, investigate based on the problem manifestation, and obtain professional technical support through the official channels of Guoli Chemical. Problem Investigation and Common Abnormality Handling If any abnormality occurs during the use of Castor Oil Ethoxylate EL-80, first make a preliminary judgment based on the phenomenon: Poor emulsification or layering: Check whether the HLB value match is appropriate (this product has an HLB value of 16-17, suitable for O/W type emulsification), confirm whether the ratio of oil phase to emulsifier is within the recommended range (usually 2% to 10% of the oil phase mass), and whether the addition sequence is correct — the phase inversion emulsification method should be used, adding this product to the oil phase and then slowly adding water under stirring. Poor water solubility, turbid solution: Check whether the storage temperature is too low causing the product to cake or harden (it is recommended to warm up at 20-35°C before use), and confirm whether the water hardness is too high or there is electrolyte interference; this product is stable in hard water, but extreme conditions may still affect the dissolution rate. Excessive foaming: This product is a low-foaming surctant. If abnormal foam occurs, it is mostly due to compatibility conflicts with other high-foaming components in the formulation. It is recommended to test separately and adjust the blending ratio. Abnormal product appearance (discoloration, layering, off-odor): Immediately stop use and check whether the storage conditions meet requirements (cool and dry, 5-35°C, container sealed), verify whether the 24-month shelf life has been exceeded or whether the product has been opened and left unsealed for a long time, leading to moisture absorption and deterioration. How to Obtain Technical Support from Guoli Chemical Guoli Chemical provides an independent inspection report and a complete Safety Data Sheet (SDS) for each batch of product. Users can obtain professional technical support through the following official channels: 1. Check the accompanying documents: Each shipment is accompanied by a Certificate of Analysis (COA) and a Safety Data Sheet (SDS), which contain the batch number, physical and chemical indicators, and safety operation information. The SDS usually lists the manucturer's technical consultation phone number and emergency contact information. 2. Contact your dedicated sales manager: Communicate directly with the business contact person at the time of purchase. The sales manager can coordinate technical engineers to provide one-on-one application guidance and formulation optimization suggestions. 3. Call the company's official phone number: Visit the official website of Haian Guoli Chemical Co., Ltd. to obtain the technical department hotline, or look for the printed customer service contact information on the product label or packaging barrel. 4. Provide complete on-site information: When contacting technical support, prepare the following information for quick problem identification: product batch number, use environment temperature and water quality conditions, formulation system and addition ratio, specific description of the abnormal phenomenon, and actual photos. Precautions Be sure to conduct small-scale tests before use to determine the optimal dosage and process conditions, avoiding large-scale investment in unverified formulations. If personnel contact injuries occur, refer to the first aid measures in the SDS for initial treatment, then seek medical attention based on the situation and contact the manucturer to provide toxicological data to assist diagnosis and treatment. Product technical parameters should be based on the batch inspection report. Typical data in the database are for reference only. If there are major process adjustment requirements, please request the latest batch technical support.

Question 3

How to purchase Castor Oil Polyoxyethylene Ether EL-80? What is the minimum order quantity?

Accepted Answer

The minimum packaging specification is 25 kg for orders, please contact the Guoli Chemical sales team for real-time pricing. Purchase Methods Castor Oil Polyoxyethylene Ether EL-80 (CAS: 61791-12-6) is a regular mass-produced product of Haian Guoli Chemical Co., Ltd. You can inquire about procurement through the following channels: Official Channel: Directly contact the sales department of Guoli Chemical to obtain the latest product quotations, inventory status, and technical support. It is recommended to call the sales hotline published on the company's official website or send an inquiry email. Sample Request: Before bulk purchase, you can contact the sales team to apply for free samples for small-scale validation to confirm the product's suitability in your specific formulation (the database recommends conducting small-scale tests before use). Technical Consultation: If you need to obtain complete batch inspection reports (COA), Safety Data Sheets (SDS), or application formulation suggestions, you can simultaneously request them from the sales personnel. Packaging Specifications and Minimum Order Quantity According to the Guoli Chemical product database information, this product offers the following standard packaging specifications: Packaging SpecificationPackaging TypeDescription 25 kgPaper-plastic composite bag (with PE liner)Small packaging, suitable for small-scale tests or small batch production 50 kgNew plastic drumMedium specification, easy to handle and use 200 kgGalvanized iron drum or new plastic drumStandard bulk packaging 1000 kgIBC toteSuitable for large-scale continuous production needs Among them, 200 kg galvanized iron drum/plastic drum is the standard conventional packaging, and 25 kg and 50 kg specifications can be provided according to customer needs. The minimum order quantity is generally 25 kg, and bulk purchases can enjoy tiered price discounts. It is recommended to confirm the actual minimum order quantity and order requirements with the sales team, as they may be adjusted according to raw material supply and production schedule. Price Explanation The pricing of Castor Oil Polyoxyethylene Ether EL-80 is affected by market price fluctuations of raw materials such as ethylene oxide (EO) and castor oil, and the price is quoted in RMB/ton. The database shows that the current price information is for reference only, please contact the Guoli Chemical sales team for the latest quotation for actual transaction prices. Customers with bulk purchases or long-term cooperation agreements can apply for preferential settlement terms. Important Notes The product shelf life is 24 months from the date of production, please reasonably plan the purchase quantity based on actual usage to avoid quality changes due to long-term storage. Storage temperature should be maintained at 5～40℃ to prevent softening and caking at high temperatures or hardening of the paste at low temperatures. This product is a non-hazardous chemical and can be transported under general chemical conditions, with relatively low transportation costs. It is recommended to request and read the complete Safety Data Sheet (SDS) before purchase to ensure compliance with your company's safety management requirements.

Question 4

Does Castor Oil Polyoxyethylene Ether EL-80 meet environmental requirements? Can you provide a test report?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-80 has good environmental performance. It is a non-ionic surctant that is ultimately biodegradable, and Guoli Chemical can provide independent test reports for each batch of product. Detailed Description Castor Oil Polyoxyethylene Ether EL-80 is synthesized from natural castor oil and ethylene oxide. The raw materials are derived from renewable resources, reducing the environmental burden at the source. In terms of ecotoxicology, this product has low acute toxicity to aquatic organisms—the 48-hour EC50 value for Daphnia magna is greater than 100 mg/L, classifying it as a substance with low ecological toxicity. In terms of biodegradability, this product achieves a degradation rate of over 70% within 28 days under internationally recognized rapid biodegradation test standards such as OECD 301B, meeting the criterion for "ultimate biodegradability." This means that the product will not accumulate in the natural environment for a long time and can be gradually decomposed into harmless substances by microorganisms, aligning with the current global mainstream requirements for the environmental friendliness of surctants. Regarding test reports, Guoli Chemical undertakes to provide independent test reports for each batch of product, covering physical and chemical indicators, composition analysis, and quality parameters, ensuring product quality traceability. If you require specific environmental compliance test reports for this product (such as biodegradability test reports, acute toxicity test reports, RoHS/REACH compliance statements, etc.), it is recommended to directly contact our technical support department to obtain the latest batch test documents. Environmental Compliance Key Points Environmental IndicatorData/ConclusionReference Standard/Description Raw Material SourceNatural Castor Oil (Renewable Resource)Non-petroleum-based raw material, lower carbon footprint Biodegradability28-day degradation rate ≥ 70%OECD 301B Rapid Biodegradation Test Biodegradation LevelUltimately BiodegradableConforms to OECD Chemical Classification Standard Acute Aquatic Toxicity (Daphnia magna)EC50 (48h) > 100 mg/LLow toxicity level Hazardous Chemical ClassificationNon-hazardous ChemicalCan be transported under general chemical conditions Test Report for Each BatchProvidedIndependent test report, quality traceable Application Recommendations Given the good environmental characteristics of EL-80, this product is particularly suitable for application scenarios with high environmental requirements, such as personal care products, textiles (especially the finishing process of exported products), and "green emulsifiable concentrate" formulations in pesticide preparations. In formulation design, it can be compounded with anionic, non-ionic, and cationic surctants, achieving synergistic effects without compromising the overall environmental compliance of the formulation. Precautions Although EL-80 has excellent biodegradability and low toxicity, it is strictly prohibited to discharge directly into water bodies, soil, or drainage systems without treatment. Wastewater after use should be discharged after conventional industrial wastewater treatment in accordance with local regulations. Disposal of waste should comply with local, regional, and national regulations. It can be incinerated in licensed waste treatment cilities or handed over to qualified waste treatment agencies for disposal. If it is to be used in end products with specific environmental certifications (such as EU Ecolabel, Nordic Swan, Blue Angel, etc.), it is recommended to submit special test data to the certification body in advance and obtain confirmation. Test reports (including Safety Data Sheets) are batch-specific documents. Please contact Guoli Chemical's technical support with your purchase batch number to obtain the corresponding version.

Question 5

What advantages does Castor Oil Polyoxyethylene Ether EL-80 have compared to other similar products?

Accepted Answer

According to the technical data from Guoli Chemical, Castor Oil Polyoxyethylene Ether EL-80 possesses six core advantages over similar nonionic surctants: outstanding emulsification and solubilization ability, excellent wetting and penetration properties, tolerance to hard water and acid/alkali stability, low foaming characteristics, antistatic and smoothing properties, and superior compounding compatibility.This product is synthesized by condensing natural castor oil with approximately 80 moles of ethylene oxide (EO), with an HLB value as high as 15.5~16.5, making it a highly hydrophilic nonionic surctant. This unique structural foundation gives it more comprehensive performance compared to conventional nonionic surctants such as tty alcohol polyoxyethylene ether (AEO series) and alkylphenol polyoxyethylene ether (TX/NP series).Below is a detailed comparison of the advantages of EL-80 over conventional similar products:### 1. Low Foaming Properties, Improving Process EfficiencyUnlike conventional nonionic surctants, which tend to generate a large amount of foam during use and require additional defoamers, EL-80 produces very low foam at working temperatures and is easy to rinse. This is a significant advantage in industrial cleaning and metalworking fluid applications, significantly reducing defoamer usage, simplifying formulations, and lowering costs.### 2. Antistatic and Smoothing PropertiesThe natural tty acid ester chain and long-chain polyoxyethylene ether in the EL-80 molecule work synergistically, imparting unique antistatic and fiber smoothing/softening effects. This is a property not found in conventional nonionic surctants such as tty alcohol polyoxyethylene ether (AEO). This allows EL-80 to function simultaneously as a smoothing agent and antistatic agent in synthetic fiber spinning oils, effectively reducing the dynamic friction coefficient of fibers and minimizing fluff and breakage.### 3. Excellent Compounding CompatibilityEL-80 can be compounded with various ionic surctants (anionic, cationic, nonionic) and most organic solvents and additives, providing synergistic effects and strong formulation adaptability. This ensures that in complex application systems (such as pesticide emulsifiable concentrates and textile auxiliaries), it does not cause precipitation, delamination, or ilure due to ionic conflicts.### 4. Tolerance to Hard Water and Electrolyte StabilityIn many industrial scenarios, water hardness is high or the formulation contains a large amount of electrolytes. EL-80 maintains good activity and stable and reliable performance in hard water, weak acid, and weak alkaline media. In contrast, some anionic surctants (such as dodecylbenzene sulfonate) tend to form calcium soap precipitates in hard water, losing their effectiveness.### 5. Natural Source and Environmental FriendlinessEL-80 is derived from natural castor oil and is a renewable resource-based surctant. It has good biodegradability, with a degradation rate of over 70% in 28 days in quick biodegradability tests, aligning with the trend of green chemical development. This is an advantage that some petroleum-based similar products (such as NP/TX series, which are restricted due to environmental hormone issues) cannot match.Summary: Castor Oil Polyoxyethylene Ether EL-80 is a versatile nonionic surctant that combines efficient emulsification, low foaming, antistatic properties, and environmental friendliness.---If you need to apply this product in a specific formulation, Guoli Chemical recommends conducting a small-scale test using the following recommended dosages as a starting point:| Application Area | Recommended Use | Recommended Dosage (% of total formulation) || :--- | :--- | :--- || Industrial Cleaning | Enhance degreasing and deoiling ability | 1% - 5% || Pesticide Emulsifiable Concentrate | Main emulsifier | 5% - 12% || Textile Spinning Oil | Smoothing agent, antistatic agent | 0.1% - 0.5% (of working solution) || Metalworking Fluid | Emulsification and lubrication component | 1% - 3% || Personal Care Products | Solubilizer for oil-soluble components | Adjust according to solubilizate characteristics |Precautions:- This product may appear pasty or solidify at low temperatures. Before use, preheat at 25-40°C and stir evenly; this does not affect performance.- Keep the container sealed during storage to avoid moisture absorption. Recommended storage temperature is 5-35°C.

Question 6

How to store Castor Oil Polyoxyethylene Ether EL-80? What is the shelf life?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-80 should be stored in a cool, dry, and well-ventilated warehouse, with the temperature maintained at 5～40℃. The shelf life is 24 months under unopened conditions. Detailed Description Castor Oil Polyoxyethylene Ether EL-80 is a nonionic surctant prepared by condensation of natural castor oil with ethylene oxide. At room temperature, it appears as a light yellow paste to solid. Due to the presence of a large number of polyoxyethylene ether segments in its molecular structure, the product has a certain hygroscopicity. Therefore, the container must be kept tightly sealed during storage. After opening the drum for material retrieval, it should be resealed as soon as possible to prevent moisture absorption, caking, or quality changes caused by adsorbing moisture from the air. During storage, special attention should be paid to temperature control: excessively high temperature (above 40℃) may cause the paste to soften or even cake, affecting discharge and ease of use; excessively low temperature (below 5℃) may cause the paste to harden. Although it does not affect the internal quality after returning to room temperature, it can cause inconvenience during material retrieval. In addition, the product should be kept away from strong oxidizers, strong acids, strong bases, and other incompatible substances to avoid chemical reactions that may affect product performance. Storage Conditions Overview ItemRequirement Storage Temperature5～40℃ (15～30℃ recommended as optimal) Environment RequirementCool, dry, well-ventilated, away from fire and heat sources Light ExposureAvoid direct sunlight and rain exposure Container StatusKeep tightly sealed; reseal promptly after opening the drum Floor RequirementInstall impermeable flooring with emergency spill containment cilities Shelf Life24 months from date of manucture (unopened) Packaging Specifications200 kg galvanized iron drum/new plastic drum, 50 kg plastic drum, 25 kg paper-plastic composite bag (with PE film lining) Application Recommendations When using the product for the first time after long-term storage, it is recommended to confirm the appearance and basic properties (such as water solubility, emulsifying power, etc.) to ensure the quality meets requirements. If any abnormalities such as separation, significant color darkening, or odor generation occur, discontinue use and contact the supplier for quality inspection. For large-scale production users, it is recommended to follow the first-in, first-out principle and arrange inventory turnover reasonably. If sub-packaging is needed, the sub-packaging container should be clean and dry. After sub-packaging, it should also be sealed and stored, with the product name, batch number, and sub-packaging date marked on the container for traceability management. Precautions This product is not classified as a dangerous chemical and can be transported under general chemical conditions, but it still requires careful handling to avoid package damage. The storage area should be kept away from strong oxidizers (e.g., peroxides, permanganates) to avoid mixing with incompatible substances. In case of leakage, absorb with inert materials such as sand, sawdust, etc., collect into sealed containers, and dispose of waste according to local regulations. The product is hygroscopic; ensure the drum lid is tightly closed after material retrieval to prevent environmental moisture from entering. Products beyond the shelf life must be re-inspected and qualified before being downgraded or disposed of.

Question 7

What safety precautions should be taken when using Castor Oil Polyoxyethylene Ether EL-80?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-80 is generally classified as low-toxicity, non-flammable, and non-hazardous chemical, but strict adherence to safety operating procedures is still required during use, with emphasis on four aspects: ventilation, personal protection, spill emergency, and storage management. Detailed Description Castor Oil Polyoxyethylene Ether EL-80 is a non-ionic surctant with a flash point above 150°C (closed cup method). It is not classified as a flammable liquid but can still burn under high temperature conditions. Its acute toxicity to aquatic organisms is low (48-hour EC50 value for Daphnia magna > 100 mg/L), and the 28-day biodegradation rate can reach over 70%, making it an ultimately biodegradable substance. Although the overall risk level is low, improper handling may still cause irritation to the skin and eyes, so standardized operation is crucial. The core safety principles for using this product include: maintain good ventilation in the operating area to avoid generating aerosols or sprays; keep away from strong oxidizing agents (such as peroxides, permanganates); prohibit eating, drinking, and smoking in the workplace; thoroughly wash hands and any exposed skin after operation. Contaminated work clothing must not be taken out of the workplace and should be washed before reuse. Personal Protective Equipment (PPE) Protection AreaRequirements Respiratory ProtectionGenerally not required. If oil mist is generated due to heating or stirring, it is recommended to wear a particulate mask with a filtration efficiency of at least 95% (e.g., P95 or FFP2 type). When oxygen levels are insufficient or the concentration of contaminants is unknown, use a supplied-air respirator. Hand ProtectionWear tested chemical-resistant gloves, such as nitrile rubber gloves with thickness ≥ 0.11 mm. Avoid contaminating skin when removing gloves. Eye ProtectionWear chemical safety goggles. If there is a risk of splashing, additionally use a ce shield. Body ProtectionWear impermeable chemical protective clothing to avoid direct skin contact. First Aid Measures In case of exposure or accident, take the following first aid measures immediately: Inhalation: Quickly move the victim to fresh air and keep the airway clear. If discomfort occurs, seek immediate medical attention. Skin Contact: Immediately remove all contaminated clothing and rinse skin with plenty of soap and water for at least 15 minutes. If irritation or rash occurs, seek medical advice. Eye Contact: Immediately rinse gently with plenty of running water or saline for at least 15 minutes, lifting the upper and lower eyelids occasionally. Do not rub. If irritation persists or pain, blurred vision occur, seek immediate ophthalmic treatment. Ingestion: Rinse mouth with water. Do NOT induce vomiting. Seek immediate medical attention and show the product container or label. Fire and Spill Emergency Procedures Fire Response: Suitable extinguishing media include carbon dioxide, dry powder, alcohol-resistant foam, or water mist. Do NOT use direct water jet. Fire may produce carbon monoxide, carbon dioxide, and unburned hydrocarbons. Firefighters must wear self-contained positive pressure breathing apparatus and full chemical protective clothing. Spill Handling: For small spills, absorb or wipe with inert absorbent material (e.g., sand, vermiculite) and collect in a sealable chemical waste container. For large spills, dike or pit for containment, cover with foam to reduce vapor release, and transfer to spare containers using explosion-proof pumps. Prevent entry into drains, surce water, or groundwater. The spill area may become extremely slippery; set up warning signs immediately. Storage Requirements Store the product in a cool (recommended temperature 5–35°C), dry, well-ventilated warehouse, keeping containers tightly closed. Keep away from strong oxidizing agents, strong acids, strong bases, and other incompatible substances. Avoid moisture and direct sunlight. This product is hygroscopic; reseal promptly after opening. The storage area should have spill-proof flooring and emergency spill containment cilities. Under unopened conditions, the shelf life is 24 months from the date of production. Notes Use explosion-proof electrical equipment and lighting, and take anti-static measures such as grounding. Strictly prohibited from discharging the product directly into water bodies, soil, or drainage systems without permission. Waste disposal should comply with local regulations; it can be handed over to a qualified waste disposal agency or incinerated in permitted waste treatment cilities. For complete safety information, refer to the Safety Data Sheet (SDS) and conduct a risk assessment based on specific working conditions.

Question 8

How to use Castor Oil Polyoxyethylene Ether EL-80? What is the recommended dosage?

Accepted Answer

The usage of Castor Oil Polyoxyethylene Ether EL-80 varies depending on the application field, generally following the principle of "small test first, then scale up". The recommended dosage covers a wide range of 0.05% to 12%, depending on the formulation system and process requirements. Detailed Description Castor Oil Polyoxyethylene Ether EL-80 is a nonionic surctant with high HLB value (15.5~16.5). It appears as a light yellow paste to solid at room temperature. Since it is easily soluble in water to form a transparent solution and has excellent stability against acids, alkalis, hard water, and electrolytes, its usage methods are flexible and diverse. When used as an emulsifier, it can be directly added to the oil phase, and water is slowly added with stirring for phase inversion emulsification; alternatively, it can be pre-prepared as a 20% to 30% aqueous solution for standby, cilitating production operations and metering. This product exhibits excellent compounding compatibility in various formulations and can synergize with nonionic, anionic, cationic surctants as well as most organic solvents and auxiliaries. Its low foaming property can reduce or even eliminate the need for defoamers in actual applications, making it especially suitable for foam-sensitive processes. It is strongly recommended to conduct laboratory small-scale tests before use to determine the optimal dosage and process parameters for the specific system. Technical Parameters ParameterTypical Value/Range Product TypeNonionic Surctant Appearance (Room Temperature)Light yellow paste to solid HLB Value15.5～16.5 EO Addition MolesApproximately 80 Water SolubilityEasily soluble in water, forming a transparent solution IonicityNonionic CAS No.61791-12-6 Application Suggestions The following are the recommended dosages and usage methods for major application fields: 1. As Emulsifier (General) Recommended dosage: 2% to 10% of the oil phase weight Usage: Directly add to the oil phase, slowly add water with stirring for phase inversion emulsification; or pre-prepare as a 20% to 30% aqueous solution for standby 2. Industrial Cleaning Agent Additive Recommended dosage: 1% to 5% of the total formula weight Usage: Used in combination with dodecylbenzenesulfonic acid, tty alcohol polyoxyethylene ether, etc., to significantly enhance oil removal, dirt removal, and dispersion capabilities 3. Textile Auxiliaries Spinning oil component: 0.1% to 0.5% of the oil working fluid Leveling agent: Add 0.05% to 0.2% (based on dye bath weight) Use: Provides smoothness, antistatic property, improves fiber hand feel, prevents color spots 4. Pesticide Emulsifier Recommended dosage: 5% to 12% Usage: Added when formulating mixed solvent emulsifiable concentrates, often compounded with anionic emulsifiers to obtain stable emulsion performance 5. Metalworking Fluids Recommended dosage: 1% to 3% of the total formula weight Use: As emulsifying and lubricating component, improving emulsion stability and anti-rust synergy Precautions Priority for small-scale test: Be sure to conduct small-scale verification before use to determine the optimal dosage and formulation process conditions, avoiding losses from direct large-scale batching. Operation protection: It is recommended to wear nitrile rubber gloves and chemical safety goggles during operation to avoid direct skin and eye contact. Thoroughly wash hands after operation. Storage conditions: Store in a cool (5~40°C), dry, well-ventilated warehouse, keep container tightly sealed, avoid softening and caking at high temperatures or hardening of paste at low temperatures. The product is hygroscopic; after opening, reseal as soon as possible. Shelf life: Under unopened conditions, the shelf life is 24 months from the date of manucture. Compounding note: Avoid contact with strong oxidizers (such as peroxides, permanganates). Generally no adverse reactions when compounded with anionic, cationic, and other nonionic surctants.

Question 9

What are the main industries and processes where Castor Oil Polyoxyethylene Ether EL-80 is applied?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-80 is a nonionic surctant with a high HLB value (15.5~16.5), widely used in industries such as textile printing and dyeing, pesticide formulations, daily chemical care, metal processing, emulsion polymerization, and industrial cleaning. Its core functions include emulsification, dispersion, solubilization, and antistatic properties. Detailed Description Castor Oil Polyoxyethylene Ether EL-80 (CAS No.: 61791-12-6) is synthesized by condensing natural castor oil with approximately 80 moles of ethylene oxide under the action of a catalyst. At room temperature, it appears as a light yellow paste or solid. Thanks to its high degree of ethylene oxide addition, this product is easily soluble in water to form a transparent solution, with an HLB value between 15.5 and 16.5, making it a typical O/W (oil-in-water) emulsifier with excellent stability against acids, alkalis, hard water, and electrolytes. The molecular structure of this product combines the hydrophobic groups of long-chain tty acid esters with the hydrophilic groups of polyoxyethylene ether chains, giving it outstanding performance in reducing liquid-solid intercial tension, wetting and penetration, emulsification and dispersion, while also possessing low foaming characteristics and good antistatic effects. It is a multifunctional industrial surctant. Main Application Industries and Processes 1. Textile Industry Synthetic fiber spinning oils: Used as a smoothing component and antistatic agent in spinning oils for nylon, polyester, etc., to reduce the dynamic friction coefficient of fibers, eliminate static charge buildup, and reduce fuzz and breakage. Recommended dosage is 0.1% to 0.5% of the working oil solution. Wool spinning oils: Used as an emulsifier and lubricating aid to impart a soft handfeel to yarns. Dyeing and finishing: Used as a leveling agent and dispersant to improve uniform dye distribution on fibers and prevent color spots. Recommended dosage is 0.05% to 0.2% (based on the weight of the dye bath). 2. Pesticide Formulations Emulsifiable concentrate (EC) systems: Widely used in difficult-to-emulsify systems such as pyrethroids, organophosphates, and emamectin benzoate, providing initial emulsification and long-term stability. Recommended addition amount is 5% to 12%, often compounded with anionic emulsifiers. Emulsion in water/microemulsion: Used as the primary emulsifier to stably disperse the organic phase as fine droplets in water, enhancing the wetting, spreading, and penetration ability of the spray liquid on targets. 3. Daily Chemical and Personal Care Products Skin cleansing products: Used as a solubilizer and retting agent for water-soluble emollient esters in shampoos, shower gels, and cial cleansers to improve post-wash dryness. Creams and lotions: Used as an emulsifier in O/W creams, lotions, and sunscreen products to obtain a fine and stable cream structure. Transparent solubilization systems: Suitable for solubilizing transparent products containing fragrances, essential oils, and oil-soluble active ingredients. 4. Metalworking and Lubrication Cutting fluids/hydraulic support fluids: Used as an emulsifier and co-emulsifier in emulsifiable and semi-synthetic cutting fluids, with good emulsifying ability for base oils such as mineral oils, synthetic esters, and polyalphaolefins, and capable of adapting to high-hardness water. Recommended addition amount is 1% to 3% of the total formula. Synergistic rust prevention and lubrication: Also provides certain synergistic rust prevention effects and improved boundary lubrication, helping to extend tool life and improve workpiece surce finish. 5. Emulsion Polymerization As a nonionic emulsifier and colloidal protective agent, used in emulsion polymerization systems such as acrylates, styrene-acrylic, and vinyl acetate-acrylic, effectively maintaining the dispersion stability of latex particles, controlling particle size distribution, improving the mechanical stability and calcium ion stability of the latex, and imparting good dilution stability and compatibility to the final polymer emulsion. 6. Industrial Cleaning As a cleaning agent additive, compounded with dodecylbenzenesulfonic acid, tty alcohol polyoxyethylene ether, etc., significantly enhancing degreasing, decontamination, and dispersion capabilities. Recommended addition amount is 1% to 5% of the total formula. Technical Parameters (Core Indicator Overview) ParameterTypical Data/Range Appearance (room temperature)Light yellow paste to solid Ionic typeNonionic HLB value15.5～16.5 EO addition mole numberApproximately 80 Water solubilityEasily soluble in water, forming a transparent solution Hard water resistanceExcellent Acid and alkali resistanceResistant to weak acids and weak bases Foaming characteristicsLow foaming Flash point (closed cup)>150°C BiodegradabilityOECD 301B, 28-day degradation rate ≥70% (ultimately biodegradable) Aquatic toxicity (Daphnia magna 48h EC50)>100 mg/L Note: For detailed physicochemical indicators and batch data, please refer to the product test report or contact Guoli Chemical Technical Support. Application Suggestions Conduct small-scale tests first: It is recommended to perform small-scale tests before use to determine the optimal dosage and formulation process conditions, as the actual effect is influenced by ctors such as system composition, temperature, and water quality. Emulsification process: When used as an emulsifier, the recommended dosage is 2% to 10% of the oil phase weight. The product can be added directly to the oil phase, followed by slow addition of water under stirring for phase inversion emulsification, or it can be pre-prepared as a 20% to 30% aqueous solution for later use. Compounding suggestions: This product can be compounded with nonionic, anionic, and cationic surctants, as well as most organic solvents and auxiliaries, for synergistic effects and strong formulation adaptability. Precautions Storage temperature: Keep at 5 to 40°C to prevent softening and agglomeration at high temperatures or hardening at low temperatures. Under unopened conditions, the shelf life is 24 months. Hygroscopicity: This product is hygroscopic. After opening the container, reseal it as soon as possible to avoid moisture absorption. Incompatible substances: Avoid contact with strong oxidizers (e.g., peroxides, permanganates), strong acids, and strong bases. Safe operation: Wear nitrile rubber gloves and chemical safety goggles during operation. Use in a well-ventilated area and avoid generating aerosols or sprays. Waste disposal: Comply with local regulations. Incinerate at licensed waste treatment cilities or hand over to qualified waste disposal agencies. Avoid direct discharge into water bodies or soil without permission. For more technical details or customized formulation needs, please contact the technical support team of Haian Guoli Chemical Co., Ltd. We can provide independent test reports for each batch of product, ensuring full traceability of quality.

Question 10

What are the physicochemical and technical parameters of Castor oil polyoxyethylene ether EL-80?

Accepted Answer

Castor oil polyoxyethylene ether EL-80 has a high HLB value, excellent emulsifying and solubilizing capabilities, and low foam characteristics. Its physicochemical and technical parameters cover multiple aspects including basic physical properties, surce activity indicators, chemical stability, and safety. The following is a complete parameter summary. Detailed Explanation Castor oil polyoxyethylene ether EL-80 (CAS No.: 61791-12-6) is a nonionic surctant synthesized by condensation of natural castor oil with approximately 80 moles of ethylene oxide. Its molecular formula is C57H104O9(C2H4O)80H, with a molecular weight of approximately 4450. At room temperature, it appears as a light yellow to brownish-yellow transparent liquid or paste. It is readily soluble in water, ethanol, acetone and other organic solvents, but insoluble in petroleum ether. The product is hygroscopic, with a melting point range of about 35~40°C, so it may appear as a paste or solid at lower temperatures and can be gently warmed to restore fluidity before use. The product has high hydrophilicity, with an HLB value between 16 and 17, and a cloud point as high as 91.0~96.0°C, making it a typical O\/W emulsifier. Its surce tension is approximately 35~40 mN\/m, and the critical micelle concentration (CMC) is about 0.01%~0.1%, demonstrating good surce activity and emulsifying efficiency. The foam characteristic is low foam, which can reduce the amount of defoamer needed in practical applications and improve process efficiency. In terms of chemical stability, the product exhibits good tolerance to acids, alkalis, and hard water, but its oxidation resistance is average, so contact with strong oxidizers should be avoided. Guoli Chemical provides an independent inspection report for each batch of product, ensuring active content ≥99%, moisture ≤1.0%, and free alcohol ≤3%. Key indicators such as acid value, hydroxyl value, and saponification value are strictly controlled within the range of industry standards. The product has a flash point greater than 200°C, is not classified as a flammable liquid, and has good safety in storage and transportation. Technical Parameters Parameter CategoryParameter NameIndicator\/Value Basic InformationCAS No.61791-12-6 Molecular FormulaC57H104O9(C2H4O)80H Molecular WeightApprox. 4450 AppearanceLight yellow to brownish-yellow transparent liquid (or paste) Core Physical PropertiesHLB Value16~17 Cloud Point (1% aqueous solution)91.0~96.0 °C Melting Point35~40 °C Density (25°C)1.05~1.10 g\/cm³ Surce PerformanceSurce TensionApprox. 35~40 mN\/m Critical Micelle Concentration (CMC)Approx. 0.01%~0.1% Foam CharacteristicLow foam Chemical IndicatorsActive Content≥99% Acid Value≤1.0 mgKOH\/g Hydroxyl Value37.0~41.0 mgKOH\/g Saponification Value35~45 mgKOH\/g Iodine Value≤20 Quality ControlMoisture≤1.0% Solid Content≥98% Free Alcohol≤3% pH Value1% Aqueous Solution pH5.5~7.5 5% Aqueous Solution pH5.5~7.5 Solvent and StabilitySolubilityEasily soluble in water, ethanol, acetone; insoluble in petroleum ether Chemical StabilityStable to acids, alkalis, hard water; moderate oxidation resistance; hygroscopic OthersKinematic ViscosityApprox. 2000~3000 mm²\/s Refractive Index1.470~1.480 Flash Point (Closed Cup)>200 °C Safety and LimitsHeavy Metals (as Pb)≤10 mg\/kg Arsenic (As)≤2 mg\/kg Application Recommendations Based on the above parameter characteristics, EL-80 is especially suitable as an O\/W emulsifier in the following scenarios: High-performance emulsification systems: HLB value of 16~17, cloud point >90°C, suitable for emulsification of mineral oils, animal and vegetable oils, and aromatic solvents. Recommended dosage is 2%~10% of the oil phase mass. High-temperature processing environments: High cloud point ensures excellent emulsifying ability even in high-temperature dyeing, high-temperature cleaning, and other processes, with no performance degradation. Low-foam formulations: Suitable for industrial cleaners, cutting fluids, and other scenarios requiring low foam or easy rinsing. Recommended addition amount is 1%~5% of the total formulation. Personal care product solubilization: High HLB value and excellent water solubility make it an ideal solubilizer for fragrances, essential oils, and other oil-soluble ingredients. Precautions The product has a melting point of approximately 35~40°C. It may appear as a paste or solid when stored at low temperatures, which is normal. Before use, it can be warmed (≤50°C) and stirred to uniformity without affecting product quality. The product is hygroscopic. After opening, it should be sealed and stored as soon as possible to avoid moisture absorption leading to excessive moisture content. Storage temperature is recommended to be kept at 5

Castor Oil Ethoxylate EL-80

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