Question 1

Is castor oil polyoxyethylene ether EL-10 harmful to the human body? Does it have an impact on the environment?

Accepted Answer

Castor oil polyoxyethylene ether EL-10 is a low-toxicity non-hazardous substance, with mild irritancy to the human body but no serious toxicity; its impact on the environment is controllable, but large spills into water bodies must be prevented. Effects on human health According to the product safety data from Guoli Chemical, castor oil polyoxyethylene ether EL-10 (CAS number: 61791-12-6) is low-toxicity upon inhalation or ingestion and is not classified as a hazardous chemical. Its main health effects are concentrated on local irritation: it causes mild irritation to the eyes and skin, and repeated or prolonged contact may lead to skin detting and dryness. Under normal industrial use conditions, as long as operating procedures are followed and appropriate personal protective equipment is worn, the health risk is controllable. This product is a non-flammable liquid (flash point >150°C) and is not classified as a dangerous good. However, when decomposed at high temperatures or in flames, it releases irritating gases such as carbon monoxide and carbon dioxide, so it should be avoided for use or storage under extreme high-temperature conditions. Heavy metal content is strictly controlled, with total heavy metals ≤10 mg/kg and arsenic ≤2 mg/kg (source: Guoli Chemical product database), meeting industrial application safety standards. Environmental impact Castor oil polyoxyethylene ether EL-10 is modified from natural castor oil via ethoxylation and, compared to fully synthetic petrochemical surctants, has relatively better renewability and lower ecological burden. This product is low-foaming and does not easily cause persistent foam pollution in actual water environments. However, as a nonionic surctant, this product has excellent emulsifying ability. Once it enters a water body in large quantities, it may interfere with the cell membranes of aquatic organisms, affecting the normal functions of the aquatic ecosystem. It is easily soluble in organic solvents such as ethanol and ether. Strict control should be exercised during use and waste disposal, and direct discharge into sewers, surce water, or soil without treatment is strictly prohibited. Currently, the Guoli Chemical database has not provided clear biodegradability data (such as BOD/COD ratio, OECD degradation test results) and ecotoxicity data (such as LC50, EC50) for this product. It is recommended that users conduct their own environmental impact assessments or consult Guoli Chemical technical support when using and discharging large quantities. Technical parameters (safety-related) ParameterValue Hazard classificationNon-hazardous, non-flammable liquid Flash point>150°C Acute toxicityLow toxicity upon inhalation or ingestion IrritancyMild irritation to eyes and skin; repeated contact may cause skin detting Total heavy metals≤10 mg/kg Arsenic content≤2 mg/kg pH value (1% aqueous solution)5.0-7.0 Foam performanceLow foaming Chemical stabilityStable at normal temperature; avoid strong acids, strong bases, and strong oxidizing agents Ecotoxicity/biodegradability dataNot available at this time Data sourceGuoli Chemical product database Safe use and environmental recommendations Personal protection: Wear nitrile rubber gloves, chemical safety goggles, and appropriate protective clothing during operation; use in a well-ventilated area and avoid inhaling vapors or mists. Emergency procedures: In case of skin contact, rinse immediately with running water and soap for at least 15 minutes; for eye contact, lift eyelids and rinse with plenty of water for at least 15 minutes and seek medical attention immediately; if ingested, do not induce vomiting, rinse mouth with water and seek medical attention immediately. Spill response: For small spills, absorb with inert absorbent materials (dry sand, vermiculite) and collect in sealed containers; for large spills, contain quickly to prevent entry into sewers, surce water, or soil, and dispose of residues according to regulations. Waste disposal: Waste disposal must comply with local environmental regulations; do not discard indiscriminately and recommend entrusting to a qualified hazardous waste treatment cility. Storage: Store in a cool, dry, well-ventilated warehouse (0°C to 40°C), away from strong oxidizing agents, strong acids, and other incompatible substances, and keep containers tightly closed. Notes Although castor oil polyoxyethylene ether EL-10 is widely used in cosmetics, pesticides, and other fields, when used in product formulations, its safety should be evaluated based on the intended use of the final product. If used in cosmetics or products that may come into contact with the human body, it must comply with the relevant regulations on raw material usage specifications and impurity limits. For further questions, it is recommended to directly contact the Guoli Chemical technical team to obtain a detailed safety data sheet or conduct a specific assessment.

Question 2

What should I do if problems occur during the use of Castor Oil Polyoxyethylene Ether EL-10? How to obtain technical support?

Accepted Answer

If you encounter problems when using Castor Oil Polyoxyethylene Ether EL-10, please first conduct a preliminary investigation based on the type of problem, and then contact Guoli Chemical for professional technical support. Common Problems and Troubleshooting Steps During the use of Castor Oil Polyoxyethylene Ether EL-10 (CAS No.: 61791-12-6), if abnormalities occur, it is recommended to follow the steps below for preliminary investigation to quickly identify the cause of the problem, and also to cilitate accurate communication with technical personnel later: 1. Poor emulsification effect or emulsion stratification: First, check whether the product is within its valid storage period and if the storage temperature is controlled between 0°C and 40°C, to avoid product deterioration or stratification caused by high or low temperatures. Secondly, confirm whether the dosage of EL-10 in the formula is appropriate – this product has an HLB value of 6.4, making it a lipophilic emulsifier, especially suitable for W\/O (water-in-oil) systems. If used in O\/W systems, it may need to be compounded with emulsifiers of higher HLB values. In addition, check whether the water hardness and pH value are within the acceptable range; although this product is resistant to acid, alkali, and hard water, extreme conditions may still affect emulsification stability. 2. Abnormal product appearance (turbidity, precipitation, darkening): The normal appearance should be a light yellow to yellow transparent liquid. If turbidity or precipitation occurs, it may be due to solidification caused by excessively low storage temperature (melting point 3. Reduced dispersion or wetting performance: Confirm whether the container was not sealed, causing the product to absorb moisture (this product is hygroscopic), as an increased water content may affect performance. Also check whether there are incompatible substances in the system (such as strong acids, strong bases, strong oxidizers), which may damage the chemical structure of the product. How to Obtain Technical Support from Guoli Chemical If the problem cannot be solved through the above investigation, or if encountering more complex technical difficulties, it is recommended to contact Hai'an Guoli Chemical Co., Ltd. directly for official technical support: Provide product batch number and purchase information: Before contacting, please prepare the batch number, production date, and purchase channel information on the product packaging so that technical personnel can quickly trace product information. Describe the problem scenario: Provide detailed information about your application field (such as pesticide emulsifiable concentrate, cosmetics, metalworking fluids, etc.), formula system, EL-10 addition amount, process conditions (temperature, stirring method, feeding sequence), and specific abnormal phenomena observed. Attach samples or photos: If conditions permit, provide photos of the problematic sample or send a small sample to cilitate targeted analysis and testing in the laboratory. Consult official channels: It is recommended to contact Guoli Chemical through the business or technical support phone numbers and email addresses published on its official website. Since the database does not contain real-time updated contact information, please visit the Guoli Chemical official website or refer to the product's accompanying inspection report and packaging labels to obtain the latest official contact information. Emergency Safety Handling If the problem involves a safety incident (such as leakage, skin\/eye contact, etc.), please first follow the emergency measures below, and then contact technical support: Emergency Handling Points Skin contact: Immediately remove contaminated clothing, flush with plenty of running water and soap for at least 15 minutes. If irritation persists, seek medical attention. Eye contact: Immediately open eyelids and rinse thoroughly with plenty of water or saline for at least 15 minutes, and seek medical attention immediately. Leak handling: For small leaks, cover and absorb with inert absorbent material (dry sand, vermiculite, etc.), then collect into a closed container. For large leaks, contain to prevent entry into drains, and transfer to emergency containers using explosion-proof pumps. Firefighting: This product is non-flammable, but decomposition at high temperature may release irritating gases. Use water spray, dry powder, carbon dioxide to extinguish fires. Guoli Chemical always attaches great importance to customer product use experience and technical support services. It is recommended to complete small-scale verification tests before first using this product in batch production to ensure formula compatibility and process stability, thereby minimizing application risks. Product NameCastor Oil Polyoxyethylene Ether EL-10 CAS No.61791-12-6 AppearanceLight yellow to yellow transparent liquid Ionic TypeNon-ionic HLB Value6.4 Content≥99% pH Value (1% Aqueous Solution)5.0-7.0 Storage Temperature0°C to 40°C Packaging Specification50kg plastic drum \/ 200kg plastic drum \/ IBC tote

Question 3

How to purchase Castor Oil Polyoxyethylene Ether EL-10? What is the minimum order quantity?

Accepted Answer

To purchase Castor Oil Polyoxyethylene Ether EL-10, you need to contact the Guoli Chemical sales team directly. The minimum order quantity is not publicly available. Detailed Description Castor Oil Polyoxyethylene Ether EL-10 (CAS No.: 61791-12-6) is a regular product of Haian Guoli Chemical Co., Ltd., available from stock. Due to the significant fluctuations in raw material prices and the varying price policies based on different purchase quantities and packaging specifications, the official website does not disclose a unified retail price or minimum order quantity. It is recommended to contact the sales department directly through the following channels to obtain accurate quotations and purchasing policies. This product is a non-hazardous, non-flammable liquid with limited transportation restrictions and high logistical flexibility. Guoli Chemical offers a variety of standard packaging options to meet procurement needs ranging from small trial batches to large-scale production. Packaging Specifications According to the Guoli Chemical product database, this product is available in the following standard packaging: Packaging TypeSpecificationApplication Scenario Plastic Drum50kgSmall batch samples, laboratory R&D Plastic Drum200kgRoutine procurement for small to medium-scale production IBC ToteApprox. 1000kgBulk procurement for large-scale industrial production ※ Packaging data source: Guoli Chemical product database Purchase Process Recommendations Step 1: Confirm your technical requirements, including the required quantity, packaging specification, and application area (such as pesticide emulsification, textile oil agents, cosmetics, etc.), so that the sales team can match the optimal solution for you. Step 2: Contact the Guoli Chemical sales department (via the official website contact page or by calling the company business phone) and provide your procurement intention and technical requirements. Step 3: The sales team will issue a formal quotation and confirm the delivery lead time based on your purchase quantity, packaging method, and logistics needs. Step 4: After both parties confirm the order, Guoli Chemical will arrange shipment. For sample needs, you can request small-size packaging (50kg drum) for testing first. Precautions Storage temperature is recommended to be controlled between 0°C and 40°C, avoiding direct sunlight, and keeping the container tightly sealed to prevent moisture. The product is hygroscopic; after opening, use it as soon as possible and seal the remaining material for storage. Before ordering, confirm whether the product specifications (such as HLB value 6.4, hydroxyl value 80~100, acid value ≤1.5) meet your process requirements. If technical selection support is needed (such as HLB value matching recommendations for emulsification systems), you can also consult the Guoli Chemical technical team.

Question 4

Does Castor Oil Polyoxyethylene Ether EL-10 meet environmental requirements? Can a test report be provided?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-10 is made from natural castor oil, is low-toxicity, non-hazardous, and has good basic environmental characteristics. However, specific test reports need to be obtained through a special application to Guoli Chemical. Detailed Description Castor Oil Polyoxyethylene Ether EL-10 (CAS: 61791-12-6) is a nonionic surctant produced by the addition polymerization of ethylene oxide with natural castor oil as the starting material. From the perspective of raw material source, castor oil is a renewable natural plant oil. Compared with petroleum-based surctants (such as alkylphenol ethoxylates APEO products), its bio-based origin gives the product better environmental affinity. In terms of toxicity data, the product database clearly marks it as a low-toxicity substance, with low inhalation or ingestion toxicity. It does not ll under the acute toxicity category of hazardous chemical classification, and its flash point is >150°C, making it a non-flammable liquid with low fire risk during storage, transportation, and use. In terms of environmental te, as a polyoxyethylene-type nonionic surctant, the molecular structure of PEG-10 castor oil contains ester bonds and ether bonds, theoretically giving it a certain potential for biodegradation. However, it should be noted that the actual degradation rate is influenced by ctors such as the number of ethylene oxide adducts (10 EO for this product) and environmental conditions (temperature, microbial community). It needs to be quantitatively assessed through standard biodegradability tests (such as the OECD 301 series). Additionally, this product is a low-foaming surctant, which can reduce the impact of foam discharge on water bodies in applications such as industrial cleaning. Currently, the product database does not include specific environmental certification information for this product (such as REACH compliance statements, RoHS tests, biodegradability test reports, etc.), nor are there direct records matching "EL-10 environmental test report". Therefore, regarding compliance with specific national or industry environmental regulations, it is recommended to directly contact the technical support department of Guoli Chemical for confirmation based on your specific application scenario and compliance requirements. Technical Parameters (Summary of Environmentally Relevant Indicators) Parameter Item Value/Description Environmental Relevance Explanation Hazard Classification Non-hazardous, non-flammable liquid Not within the scope of hazardous chemical control, low threshold for transportation and storage Toxicity Grade Low toxicity Low acute toxicity risk, minimal potential harm to operators and aquatic organisms Flash Point >150°C High flash point, non-flammable, reduces VOC and fire environmental risks Heavy Metal Content ≤10 ppm Meets general industrial product heavy metal limit requirements Arsenic Content ≤2 ppm Very low arsenic residue, meets strict standards for cosmetics and other industries pH Value (1% Aqueous Solution) 5.0—7.0 Nearly neutral, minimal impact on water and soil pH Foaming Characteristics Low foam Reduces foam load in wastewater treatment, lowers the need for defoamers Raw Material Source Natural castor oil Renewable resource, reduces reliance on petroleum-based raw materials Biodegradability/REACH Reports, etc. Not available for this parameter Need to separately request specialized test reports from the supplier Application Recommendations This product has been widely used in cosmetics, pesticide formulations, textile auxiliaries, and other fields, indirectly indicating that its safety for humans and the environment under normal use conditions has been recognized by the industry. If you plan to use it for export to the EU market or for end products with strict environmental audit requirements (such as ECO-labelled cleaners, organic cosmetics, etc.), it is recommended to contact Guoli Chemical regarding the following dimensions: Biodegradability Report: Request biodegradability data tested according to OECD 301B (CO₂ evolution method) or OECD 301F (manometric respirometry method). REACH Compliance Statement: Confirm that the product has been (pre-)registered under the EU REACH regulation and that SVHC (Substances of Very High Concern) testing has been conducted. Residual Monomer Testing: Request a test report for ethylene oxide (EO) and 1,4-dioxane residues to ensure compliance with cosmetic or pharmacopoeial limits. RoHS/APEO Declaration: Confirm that the product does not contain alkylphenol ethoxylates (APEO) or other restricted substances. Notes Test Reports Not Provided by Deult: Conventional industrial products generally do not come with detailed environmental type test reports; these need to be negotiated as special requirements with the sales department of Guoli Chemical before placing an order. Wastewater Discharge Management: Although the product has low toxicity, high concentrations of surctants in industrial wastewater can still cause oxygen consumption load to water bodies. It is recommended to treat production wastewater before discharge according to standards. Emergency Leak Handling: In case of a spill, prevent it from entering sewers, surce water, or soil. Collect using inert absorbent materials and dispose of according to local environmental regulations. Information Updates: The environmental compliance status of the product may change with regulatory updates. It is recommended to regularly obtain the latest compliance materials from the supplier.

Question 5

What are the advantages of Castor Oil Polyoxyethylene Ether EL-10 compared to other similar products?

Accepted Answer

According to technical data from Guoli Chemical, the core advantages of Castor Oil Polyoxyethylene Ether EL-10 lie in its **excellent water-in-oil (W/O) emulsification efficiency, strong resistance to acid, alkali, and hard water stability, and broad industrial compatibility**, making it a cost-effective multifunctional nonionic surctant. Compared to other similar products, the advantages of EL-10 are mainly reflected in the following dimensions: ### 1. Excellent Water-in-Oil Emulsification Performance EL-10 has an HLB value of **6.4**, which makes it perform exceptionally well in water-in-oil emulsion systems, a capability that many conventional oil-in-water surctants (such as high HLB value Peregal or isomeric alcohol ethers) find difficult to achieve. * **Efficient emulsification of mineral oils and animal/vegetable oils**: It can effectively emulsify a variety of oil phases, particularly suitable for scenarios requiring the formation of stable "water-in-oil" pastes. * **Strong emulsion stability**: The castor oil hydrophobic chain in its molecular structure provides strong steric hindrance, making the prepared emulsion less prone to layering or demulsification during long-term storage or under high-temperature conditions. ### 2. Outstanding Chemical Stability and Wide Applicability EL-10's molecular structure does not contain easily hydrolyzable ester bonds, giving it extremely high chemical stability, superior to many emulsifiers containing ester groups (such as Span, Tween series, or certain tty acid polyoxyethylene esters). * **Resistant to acid, alkali, and hard water**: It maintains stable surce activity even in complex water conditions with fluctuating pH and containing calcium and magnesium ions, without easy deactivation or calcium soap precipitation. * **Hydrolysis resistance**: Its chemical structure remains stable during long-term storage in acidic or alkaline aqueous systems, continuously exerting its efficacy. ### 3. Multifunctional Characteristics Combining Lubrication, Dispersion, and Low Foam Compared to single-function emulsifiers, EL-10 demonstrates the value of "multi-purpose in one agent." * **Excellent lubrication and tliquoring properties**: Derived from the characteristics of castor oil molecules, it not only emulsifies in metalworking, textile oils, and leather tliquoring processes but also provides a smooth and soft feel, reducing friction—a natural oil-like touch that ordinary synthetic alcohol ethers find hard to provide. * **Efficient dispersion ability**: In paint and ink systems, it exhibits excellent wetting and dispersing effects on organic pigments such as phthalocyanine blue and azo pigments, effectively reducing system viscosity and preventing pigment flocculation and sedimentation. * **Low foam property**: It is a low-foam product, ideal for use in industrial cleaning and metalworking fluid systems involving circulating pumping and high-pressure spraying. ### 4. Excellent Product Purity and Safety Indicators * **High active content**: Guoli Chemical's EL-10 has an active matter content **≥99%** and a moisture content **≤1.0%**, ensuring no compromise in product performance. * **Low acid value**: The product's acid value is **≤1.5 mgKOH/g**, resulting in very low corrosiveness to other components in the formulation and to contacted metal substrates. * **Non-flammable, low toxicity**: Flash point **>150°C**, classified as non-hazardous, providing a higher safety margin during storage, transportation, and use. ### Key Performance Data Comparison (Based on Guoli Chemical Database) | Performance Indicator | EL-10 Typical Value | Comparative Advantage Description | | :--- | :--- | :--- | | **HLB Value** | **6.4** | Specializes in **water-in-oil (W/O) emulsification**, the ideal choice for such systems. | | **Active Content** | **≥99%** | High purity, potent performance, requiring less dosage. | | **pH Value (1% Aqueous Solution)** | 5.0 - 7.0 | Near neutral, **high formulation mildness**, safe for application. | | **Surce Tension** | Approx. 30-35 mN/m | Good wetting and spreading ability, helping the solution or coating to spread on the surce. | | **Flash Point** | **>150°C** | Significantly higher than many organic solvent-based auxiliaries, non-flammable, safer for production. | | **Foaming Characteristics** | **Low Foam** | Can be used in high-pressure cleaning, metalworking fluids, etc., without adding large amounts of defoamer. | | **Alkali Resistance Stability** | **Resistant to dilute alkali** | Stable in alkaline processes such as mercerizing and degreasing, performance r exceeds general ester-type emulsifiers. | | **Acid Value** | ≤1.5 mgKOH/g | Low free acid, avoiding potential corrosion to oil phases, pigments, and metal packaging. | ### Application Recommendations Based on its unique advantages, it is highly recommended for use in the following areas: * **Pesticide Emulsification**: For formulating high-efficiency lambda-cyhalothrin emulsifiable concentrate, etc., recommended dosage is 5-10% of the total formulation, leveraging its excellent spreading and penetration ability to enhance efficacy. * **Industrial Hard Surce Cleaning**: Suitable for cleaning heavy oil stains on metal and plastic parts, utilizing its strong emulsification of mineral oils and low-foam characteristics. * **Solvent-based Coatings and Inks**: As a dispersant for organic pigments, recommended to be dissolved in the solvent before pigment addition, at a dosage of 2%-5% of the pigment weight. * **Synthetic Fiber Oils**: Provides smoothness and cohesion, reducing breakage and fuzz during spinning. ### Precautions * **Storage Temperature**: Although the flash point is >150°C and the freezing point is low, the recommended storage temperature is **0 to 40°C**, avoiding long-term high temperatures that may cause color deepening or temporary turbidity. * **Non-water-soluble Product**: This product is oil-soluble and insoluble in water. When in use, add it directly to the oil phase or pre-mix with oily solvents; do not add directly to the aqueous phase.

Question 6

How to store Castor Oil Polyoxyethylene Ether EL-10? What is the shelf life?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-10 should be stored in a cool, dry, and well-ventilated warehouse. The recommended storage temperature is 0°C to 40°C, keep the container tightly closed, and avoid direct sunlight. As for the shelf life, there is no clear label in the product database. Generally, non-ionic surctants have a shelf life of 1-2 years under standard storage conditions. Detailed Description Castor Oil Polyoxyethylene Ether EL-10 (PEG-10 Castor Oil) is classified as a non-hazardous, non-flammable liquid with relatively stable chemical properties. However, to ensure that the product performance does not deteriorate, storage conditions must still be strictly controlled. This product should be stored in a cool (recommended 0°C–40°C), dry, and well-ventilated warehouse, away from heat sources, ignition sources, and incompatible substances (such as strong oxidizers and strong acids), to prevent product decomposition, discoloration, or stratification due to high temperature or contact with incompatible materials. Regarding the container, it must be kept tightly closed to prevent moisture absorption and external contamination. Since this product is a non-ionic surctant, prolonged exposure to humid air may cause water absorption, affecting its emulsifying performance and usage effects. At the same time, avoid direct sunlight, as ultraviolet light and high temperature may accelerate oxidation and deterioration. Regarding the shelf life, the product database provided this time does not contain official shelf life data for this product. Under normal circumstances, for non-ionic surctants of the castor oil polyoxyethylene ether type, when stored in sealed and standard conditions, it is recommended to use within 1-2 years from the date of manucture to ensure optimal emulsifying performance and product quality. After the recommended storage period, it is advisable to sample and test key indicators such as appearance and emulsifying performance before use, and only use if they meet requirements. Technical Parameters ItemRequirement/Parameter Storage Temperature0°C to 40°C Storage EnvironmentCool, dry, well-ventilated Container StatusKeep tightly closed to prevent moisture absorption and contamination Light Protection RequirementAvoid direct sunlight Substances to AvoidIgnition sources, heat sources, strong oxidizers, strong acids Flash Point>150°C Hazard ClassificationNon-hazardous, non-flammable liquid Shelf LifeNo official data (industry suggests 1-2 years) Application Recommendations To ensure optimal performance during use, it is recommended to follow the "First In, First Out" inventory management principle. After opening a drum for sampling, reseal the container as soon as possible to minimize air exposure. If noticeable stratification, turbidity, discoloration, or odor is observed, it may indicate deterioration, and the product should not be used further. For large-scale tank storage, regularly check the sealing of the tank and whether there is water accumulation at the bottom. If necessary, install breather valves and drying devices to control moisture ingress. During low-temperature storage in winter, note that an increase in viscosity is normal. The product can be used normally after the ambient temperature rises, and do not heat directly with an open flame. Precautions The storage area should be equipped with spill emergency treatment equipment and suitable absorbent materials (such as dry sand, vermiculite, or universal absorbent pads). Store separately from other materials according to general chemical storage rules, and keep labels clearly visible. In case of a spill, for small amounts, cover and absorb with inert absorbent material and collect into a sealed container; for large spills, contain quickly to prevent entry into drains or soil. When handling, wear chemical safety goggles and chemical-resistant gloves (such as nitrile rubber) and appropriate protective clothing. Disposal must comply with local environmental regulations; do not dump arbitrarily.

Question 7

What safety precautions should be taken when using Castor Oil Polyoxyethylene Ether EL-10?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-10 is classified as non-hazardous and non-flammable liquid, but eye and skin protection are still required during handling, along with adherence to standard chemical handling procedures. Detailed Description Castor Oil Polyoxyethylene Ether EL-10 (PEG-10 Castor Oil) is a non-ionic surctant with relatively high safety. Its flash point is >150°C, it is not classified as a flammable liquid, and it has low toxicity by inhalation or ingestion, making it a non-hazardous substance. Nevertheless, this product may cause mild irritation to the eyes and skin. Repeated or prolonged contact may lead to skin detting; thus, personal protection should not be neglected during industrial use. In daily operations, use it in a well-ventilated area and apply local exhaust ventilation if necessary to ensure airborne concentrations remain below occupational exposure limits. Avoid inhalation of vapors, mists, or dusts, and prevent direct contact with eyes, skin, and clothing. After handling, thoroughly wash exposed skin, and contaminated clothing must be washed before reuse. Eating, drinking, and smoking are prohibited in the workplace, and food should not be stored there to prevent accidental ingestion. In case of accidental contact, take immediate emergency measures: For skin contact, remove contaminated clothing and rinse with plenty of running water and soap for at least 15 minutes; for eye contact, immediately lift the eyelids and rinse thoroughly with plenty of water or saline for at least 15 minutes and seek medical attention; for inhalation, move the person to fresh air; do NOT induce vomiting if ingested, rinse the mouth with water and seek immediate medical attention to prevent aspiration into the lungs, which could cause serious injury. Safety Parameters Overview ItemParameter/Description Hazard ClassificationNon-hazardous, non-flammable liquid Flash Point>150°C Toxicity (Inhalation/Ingestion)Low toxicity IrritationMild eye and skin irritation; repeated contact may cause skin detting Recommended Storage Temperature0°C to 40°C Recommended Glove MaterialChemical resistant gloves such as nitrile rubber Suitable Extinguishing MediaWater spray, alcohol-resistant foam, dry powder, carbon dioxide Incompatible SubstancesStrong oxidizers, strong acids Storage and Spill Handling Recommendations The product should be stored in a cool, dry, well-ventilated warehouse, away from heat sources, open flames, strong oxidizers, strong acids, and other incompatible materials. Keep containers tightly sealed to prevent moisture absorption and contamination, avoid direct sunlight, and maintain storage temperature between 0°C and 40°C to prevent product deterioration or separation. The storage area should be equipped with spill response equipment and suitable absorbent materials. In case of a spill, small spills can be covered with inert absorbent materials (e.g., dry sand, vermiculite, or universal absorbent pads) and collected into sealed containers; large spills must be quickly contained to prevent entry into drains, surce water, or soil, and transferred to emergency containers using explosion-proof pumps or specialized equipment. For firefighting, although this product is not flammable, it may decompose at high temperatures or in flames releasing irritating gases (e.g., carbon monoxide, carbon dioxide); firefighters should wear positive-pressure self-contained breathing apparatus and full protective clothing. Precautions Always wear chemical safety goggles and chemical-resistant gloves (e.g., nitrile rubber), and appropriate protective clothing during handling. Do NOT induce vomiting if ingested, to prevent aspiration into the lungs, which may cause chemical pneumonia or other serious injuries. Dispose of waste in accordance with local environmental regulations; do not discharge into the environment. Repeated skin contact may cause detting; it is recommended to apply skin cream after handling to protect the skin barrier.

Question 8

How to use Castor Oil Polyoxyethylene Ether EL-10? What is the recommended addition amount?

Accepted Answer

The usage method of Castor Oil Polyoxyethylene Ether EL-10 varies depending on the application field. The recommended addition amount is generally 1%~10% of the total formulation, and the optimal dosage should be determined through experiments based on the specific system and process. Detailed Description Castor Oil Polyoxyethylene Ether EL-10 (PEG-10 Castor Oil) is a nonionic surctant, appearing as a light yellow to yellow transparent oily liquid, with a low HLB value and outstanding lipophilicity, especially suitable for W/O (water-in-oil) emulsion systems. Its usage method is usually: pre-dissolve or disperse in the oil phase, then mix with the water phase for emulsification. The specific operation process should be adjusted according to the formulation system of the final product. This product has good resistance to acid, alkali, and hard water, maintaining high chemical activity under complex water quality or extreme pH conditions. In actual use, it is recommended to slowly add under stirring conditions to ensure uniform dispersion and fully exert its emulsifying and wetting properties. For systems that require heating (such as cream cosmetics, textile oils, etc.), it can be operated at 40~70°C, which is conducive to reducing product viscosity and improving mixing efficiency. Since EL-10 is liquid at room temperature, it can be used directly without pre-dissolution. For high-viscosity formulations, it can be diluted with a small amount of mineral oil or oily components in the formulation before adding to the system. This product has good compatibility with anionic, cationic, and other nonionic surctants and can be used in combination to achieve synergistic effects. Technical Parameters Parameter ItemDescription Product TypeNonionic Surctant AppearanceLight yellow to yellow transparent oily liquid IonicityNonionic HLB ValueAbout 6~7 (suitable for W/O emulsion system) pH StabilityResistant to acid and alkali, stable in a wide pH range Water Hardness ToleranceExcellent, resistant to hard water Flash Point>150°C Storage TemperatureRecommended 0°C to 40°C CAS Number61791-12-6 Application Recommendations The following are usage guidelines and recommended addition amount ranges for typical application fields (addition amounts are mass percentages of the total formulation, specific values need to be optimized through experiments): Application FieldRecommended Addition Amount (wt%)Usage Method Pesticide Emulsifiable Concentrate (EC)5%~15%Mix and dissolve with pesticide active ingredient and solvent; when used, add water to self-emulsify to form a stable emulsion Textile Synthetic Fiber Oil Agent3%~8%Used as a smoothing agent and wetting component, compounded with other oil agent components then applied for oiling Cosmetics W/O Cream and Lotion2%~6%Add to the oil phase and heat to 60~70°C to dissolve, then mix with preheated water phase and homogenize for emulsification Leather tliquoring Agent5%~10%Compound with mineral oil, synthetic esters, etc., and treat leather during the tliquoring process Metalworking Fluid3%~8%Compound with base oil, rust inhibitors, etc., as emulsifier and lubricating component to form emulsified oil concentrate; dilute with water before use Paint and Ink Pigment Dispersion1%~5% (based on pigment weight)Add before grinding to help wet and disperse organic pigments, reduce system viscosity Industrial Hard Surce Cleaner2%~6%Compound with builders, chelating agents, etc., for removing mineral oil and grease stains Precautions Preliminary Experiment Requirement: The above addition amounts are general reference ranges. The actual optimal dosage must be determined through small-scale experiments based on the specific formulation system and process conditions; do not directly apply without testing. Personal Protection: Wear chemical safety goggles and chemical-resistant gloves (such as nitrile rubber) during operation, wear appropriate protective clothing, and use in a well-ventilated area. The product is slightly irritating to eyes and skin, and repeated contact may cause skin detting. Storage Conditions: Store in a cool, dry, well-ventilated warehouse, keep the container tightly closed, avoid direct sunlight. Recommended storage temperature is 0°C to 40°C, away from fire sources, heat sources, and incompatible substances such as strong oxidizers and strong acids. Compatibility Use: EL-10 has good compatibility with nonionic, anionic, and cationic surctants. In actual formulations, it is often compounded with other emulsifiers to adjust the HLB value and improve emulsification stability. Stratification Treatment: If the product layers or becomes turbid at low temperatures, it is a normal physical phenomenon. Before use, gently warm to room temperature or below 40°C and stir evenly; this does not affect product performance. Safety Note: This product is not a hazardous or flammable material, but may decompose and release irritant gases at high temperatures or in flames. When fighting fire, use water spray, dry powder, carbon dioxide, etc.

Question 9

In which industries and processes is Castor Oil Polyoxyethylene Ether EL-10 mainly used?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-10 is widely used in seven major industries including pesticides, textiles, cosmetics, leather, metal processing, coatings and inks, and industrial cleaning, with its core functions as a nonionic emulsifier, dispersant, and wetting agent. Detailed Explanation Castor Oil Polyoxyethylene Ether EL-10 (PEG-10 Castor Oil) is a classic nonionic surctant, appearing as a light yellow to yellow transparent oily liquid. Thanks to the reasonable ratio of the natural tty acid chain structure of castor oil and the polyoxyethylene chain segment, its HLB value is moderate, making it particularly suitable for W/O (water-in-oil) emulsion systems. This product exhibits excellent stability against acids, alkalis, and hard water, maintaining high chemical activity even under complex water quality or extreme pH conditions, making it an indispensable functional additive in many industrial formulations. In practical applications, EL-10 leverages its outstanding emulsifying, wetting, penetrating, and dispersing properties to significantly reduce oil-water intercial tension, helping to form stable emulsions between organic and aqueous phases. At the same time, it has good affinity for pigments and oily substances, effectively preventing particle aggregation and sedimentation, thus improving the storage stability of the system. These characteristics enable it to span multiple industrial fields, becoming one of the representative multifunctional surctants. Application Fields and Process Details Table Industry FieldSpecific Process/UseFunctional Role Pesticide FormulationsEmulsifiable Concentrate (EC) formulations of pesticides such as beta-cypermethrin, abamectin, etc.Nonionic emulsifier, improving emulsion stability, spreading, and penetration ability, enhancing efficacy Textile IndustrySpinning and post-processing of synthetic fibers such as polyester and nylonSmoothing agent and wetting component, imparting smoothness, antistatic property, and cohesiveness to fibers, reducing breakage and fuzz Cosmetics IndustryW/O creams, cold creams, sunscreens, skin lotionsEmulsifier and emollient, improving skin feel and product stability Leather ProcessingLeather tliquoring processtliquoring component, penetrating between leather fibers, imparting soft and full hand feel to finished leather, improving flex resistance and water repellency Metalworking FluidsEmulsified cutting fluids, grinding fluids, rust preventive oilsEmulsifier and lubricating component, with rust preventive function, suitable for ferrous metals and some non-ferrous metals Coatings and InksSolvent-based coatings and ink systems, dispersing organic pigments (e.g., phthalocyanine blue, azo pigments)High-efficiency dispersant, reducing system viscosity, improving tinting strength and storage stability Industrial CleaningLow-foam or medium-foam hard surce cleanersExcellent emulsifying and solubilizing ability for mineral oils and grease stains, suitable for cleaning hard surces such as metal and plastic Application Recommendations In pesticide EC formulations, EL-10 is usually used in combination with nonionic or anionic emulsifiers; the recommended dosage is 5%-15% of the total formulation, and the specific amount should be determined through blending tests based on the type of active ingredient and solvent system. In cosmetic W/O creams, the addition amount is generally 2%-8%, with better effects when used with suitable oil phases (e.g., mineral oil, silicone oil). In metalworking fluids, it is recommended as the main component of the emulsifier composite, used in synergy with anionic surctants and rust inhibitors. In the coatings and inks field for pigment dispersion, the recommended dosage is 5%-20% of the pigment weight, and the best dispersion effect can be achieved by adding it during the grinding process. Precautions The product is non-hazardous, non-flammable liquid with a flash point >150°C, but it should still be stored away from fire sources and strong oxidizers. It is mildly irritating to the eyes and skin; chemical safety goggles and chemical-resistant gloves must be worn during operation. Storage temperature is recommended to be controlled at 0°C to 40°C, keep the container tightly closed, avoid direct sunlight, and prevent product deterioration or stratification. Under low-temperature conditions, the product may appear turbid or layered, which is a normal physical phenomenon; after returning to room temperature and stirring evenly, the use effect is not affected.

Question 10

What are the physicochemical technical parameters of Castor Oil Polyoxyethylene Ether EL-10?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-10 is a nonionic surctant with a low HLB value (approximately 6.4), appearing as a light yellow to yellow transparent liquid, characterized by excellent water-in-oil emulsifying performance and solubility in organic solvents. Detailed Description Castor Oil Polyoxyethylene Ether EL-10 (CAS No.: 61791-12-6) is a nonionic surctant formed by the condensation of castor oil with 10 moles of ethylene oxide, with a molecular weight of approximately 1300. The product appears as a light yellow to yellow transparent oily liquid, with an active ingredient content ≥99%. It is insoluble in water (thus has no cloud point or critical micelle concentration), but is readily soluble in organic solvents such as ethanol and ether, which primarily makes it suitable for water-in-oil (W/O) emulsion systems. From physicochemical properties, the HLB value of EL-10 is about 6.4, classifying it as a lipophilic emulsifier with excellent W/O emulsifying ability. Its acid value is ≤1.5 mgKOH/g, saponification value ranges from 90 to 110 mgKOH/g, hydroxyl value is 80 to 100 mgKOH/g, iodine value is 30 to 45 gI₂/100g, and unsaturation is 1.2 to 1.8. These indicators reflect the content of ester bonds and hydroxyl groups, as well as the degree of unsaturation in tty acid chains, which are key parameters affecting emulsifying and lubricating performance. The product density is 1.04 to 1.06 g/cm³, kinematic viscosity ranges from 200 to 400 mm²/s (at 40°C), and refractive index is 1.460 to 1.470. In terms of safety and stability, the flash point of EL-10 is >150°C, making it a non-flammable liquid. It is chemically stable at room temperature, but should be kept away from strong acids, strong bases, and strong oxidizing agents. The pH value of a 1% aqueous solution is between 5.0 and 7.0, showing weak acidity to neutrality. The product is hygroscopic; containers should be kept sealed during storage, and it is recommended to store in a cool, dry place at 0°C to 40°C. Foam performance is low-foaming, which is beneficial for reducing foam interference in industrial applications. Technical Parameters Parameter Name Specification Remarks Chemical Name Polyoxyethylene (10) Castor Oil (PEG-10 Castor Oil) Polymer mixture CAS No. 61791-12-6 — Ionic Type Nonionic — Appearance Light yellow to yellow transparent liquid Visual inspection Active Content ≥99% Solid content Molecular Weight Approximately 1300 Average molecular weight HLB Value 6.4 Lipophilic, suitable for W/O emulsification pH (1% aqueous solution) 5.0 ~ 7.0 Weakly acidic to neutral pH (5% aqueous solution) 5.0 ~ 7.0 — Density (g/cm³) 1.04 ~ 1.06 20℃ Kinematic Viscosity (mm²/s) 200 ~ 400 40℃, low shear viscosity Refractive Index 1.460 ~ 1.470 — Acid Value (mgKOH/g) ≤1.5 — Saponification Value (mgKOH/g) 90 ~ 110 — Hydroxyl Value (mgKOH/g) 80 ~ 100 — Iodine Value (gI₂/100g) 30 ~ 45 — Unsaturation 1.2 ~ 1.8 — Moisture Content ≤1.0% — Flash Point (℃) >150 Non-flammable liquid Melting Point (℃) Still liquid at low temperature Cloud Point None (insoluble in water) — Surce Tension (mN/m) 30 ~ 35 — Critical Micelle Concentration (CMC) None (insoluble in water) — Foam Performance Low foaming — Solubility Readily soluble in organic solvents such as ethanol and ether

Castor Oil Ethoxylate EL-10

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Property	Value
CAS No.	61791-12-6
Molecular Formula	No fixed formula; polymer mixture
Appearance	Pale yellow to yellow transparent liquid
Ionic Type	Nonionic
Avg. Molecular Weight	Approx. 1300
Cloud Point	Insoluble in water; no cloud point
Active Content	≥99%
pH Value(1%)	5.0-7.0
pH Value(5%)	5.0-7.0
Iodine Value	30-45
Solubility	Readily soluble in ethanol, ethyl ether and other organic solvents
Surface Tension	30~35
CMC	Insoluble in water; no definable CMC
Acid Value	≤1.5
Saponification Value	90~110
Hydroxyl Value	80~100
Moisture	≤1.0
Density	1.04~1.06
Kinematic Viscosity	200~400
Refractive Index	1.460~1.470
Flash Point	>150
Hygroscopicity	Readily hygroscopic
Chemical Stability	Stable at room temperature; avoid strong oxidizers
Foam Property	Low foam
Alkali Resistance	Resistant to dilute alkali
Unsaturation	1.2~1.8
Melting Point	<0°C
Low Shear Viscosity	200~400
Solid Content	≥99%
Heavy Metal	≤10
Arsenic	≤2

Castor Oil Ethoxylate EL-10

Product Details

Applications

Properties

Safety

Product Overview

Performance Features

Packaging and Storage

Castor Oil Ethoxylate Applications

Product Properties

Safety

GHS

Handling

Storage

First Aid

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