Question 1

Is castor oil polyoxyethylene ether EL-12 harmful to the human body? Does it have an impact on the environment?

Accepted Answer

Castor oil polyoxyethylene ether EL-12 is practically non-toxic and non-irritating to the human body, has little impact on the environment and is readily biodegradable. It is a nonionic surctant with high safety. Detailed Description Castor oil polyoxyethylene ether EL-12 (PEG-12 castor oil) is a nonionic surctant produced by ethoxylation of natural castor oil. According to the product safety data of Haian Guoli Chemical Co., Ltd., this product is not a dangerous good, is not classified as flammable, explosive or toxic, and poses extremely low risk to human health under normal use conditions. In terms of toxicology, the acute oral LD50 in rats is greater than 5000 mg/kg, and the dermal LD50 is greater than 2000 mg/kg. According to toxicological classification, it belongs to the practically non-toxic grade. The results of skin irritation test and eye irritation test are both non-irritating, and there is no skin sensitization. This is due to its natural castor oil raw material base, and its molecular structure does not contain irritating groups. Therefore, it is widely used in personal care products that come into direct contact with the human body, such as cosmetic creams, lotions, and makeup removers. In terms of the environment, this product has good biodegradability, shows low toxicity to aquatic organisms, and is an environmentally friendly surctant. Nevertheless, large spills should still be avoided from being directly discharged into water bodies or sewers, because excessively high concentrations of surctants may cause local eutrophication. Under normal industrial use, its environmental load can be effectively reduced after treatment by wastewater treatment systems. Safety Parameter Summary Safety IndicatorDataConclusion Hazard ClassificationNon-dangerous goodNot flammable, explosive or toxic Acute Oral Toxicity (Rat LD50)> 5000 mg/kgPractically non-toxic Acute Dermal Toxicity (Rat LD50)> 2000 mg/kgLow toxicity Skin IrritationNon-irritatingCan be safely used in personal care products Eye IrritationNon-irritatingMild and non-irritating Skin SensitizationNo sensitizationNot prone to cause allergic reactions Flash Point (Closed Cup)> 200 °CNon-flammable liquid BiodegradabilityReadily biodegradableEnvironmentally friendly Aquatic ToxicityLow toxicityLittle impact on aquatic ecosystems Application Recommendations It is precisely due to the excellent toxicological safety and environmental compatibility of EL-12 that it is widely used in the following fields with fully verified safety: Cosmetics and Personal Care Products: Used as a solubilizer and emulsifier in creams, lotions, makeup removers, shower gels, etc., with no risk of irritation upon direct skin contact. Pesticide Formulations: Used as an emulsifier for emulsifiable concentrates and oil-in-water emulsions. After field application, it can gradually degrade in the natural environment without long-term residue. Textile Auxiliaries: Used in spinning oils and softening agents. After processing, it is removed during washing, leaving extremely low residues. Metalworking Fluids: Acts as an emulsifier and lubricant in cutting and grinding fluids. Operator exposure risk is controllable. Precautions Although the product has extremely low toxicity, it is still recommended to wear protective gloves and safety glasses during handling, follow normal industrial hygiene practices, and avoid prolonged direct contact. The workplace should be well-ventilated to avoid splashing. Wash hands promptly after handling. Disposal should be carried out in accordance with local regulations. In case of large spills, collect with inert absorbent materials (such as sand, vermiculite) and do not discharge directly into sewers or natural water bodies. Storage temperature should be controlled at 5-40°C, avoiding extreme heat or freezing, and keep away from incompatible materials such as strong oxidizers.

Question 2

What should I do if problems occur during the use of Castor Oil Polyoxyethylene Ether EL-12? How to obtain technical support?

Accepted Answer

Don't panic when encountering usage problems. Guoli Chemical provides you with comprehensive technical support. Please first troubleshoot common issues, and feel free to contact our technical team at any time if the problem cannot be resolved. Common Usage Problems and Troubleshooting Methods 1. Unsatisctory emulsification effect (emulsion layering, instability) EL-12 is a nonionic O/W emulsifier with an HLB value at a medium to high level. If emulsion instability occurs, please check: whether the oil phase type matches the HLB value of EL-12 — mineral oils and animal/vegetable oils are usually well compatible, but for polar oil phases, it may be necessary to combine with a low-HLB emulsifier; the recommended dosage is generally 5%-15% of the oil phase weight; insufficient dosage can lead to inadequate emulsification; for the emulsification process, it is recommended to use the phase inversion method or the emulsifier-in-oil method. The homogenization speed and time also affect the emulsion particle size and stability. 2. Product becomes cloudy or layers at low temperatures EL-12 may experience increased viscosity or slight cloudiness at low temperatures (below 10°C). This is a normal physical phenomenon for nonionic surctants, related to the product's cloud point characteristics. Before use, warm the product to 20-35°C and stir evenly to restore its original state; this does not affect performance. The recommended storage temperature is 5-40°C. 3. Compatibility issues when mixing with other additives The nonionic nature of EL-12 gives it broad compatibility, allowing it to be used with anionic, cationic, and nonionic additives. However, if abnormalities occur when compounding with high-concentration electrolytes or strong acid/base systems, check whether the system pH is within a suitable range; if necessary, conduct a small-scale compatibility test in advance. 4. Solubilization effect does not meet expectations When used to solubilize fragrances or essential oils in cosmetic formulations, it is recommended that the ratio of EL-12 to the substance to be solubilized be at least 3:1. If necessary, appropriately increase the dosage or combine with short-chain alcohol co-solvents. During the solubilization process, stir slowly to avoid excessive bubble formation. Channels for Technical Support Haian Guoli Chemical Co., Ltd. has a professional technical service team, offering the following support channels: Phone consultation: Directly call the official Guoli Chemical technical service hotline for one-on-one communication with technicians regarding specific issues. Sample shipment for testing: If the formulation problem is complex, you can send your system sample to the Guoli Chemical Technical Center for targeted analysis and formulation optimization suggestions by the laboratory. On-site technical support: For large-volume users or key cooperation clients, Guoli Chemical can arrange technicians to visit the site to assist in troubleshooting process issues. Technical document request: You can request the detailed product technical data sheet (TDS), material safety data sheet (MSDS), and application formulation guide for EL-12. Application Recommendations To minimize usage problems, it is recommended to conduct sufficient small-scale and pilot-scale verification before formal production. Recommended usage of EL-12 in various fields: Cosmetic emulsions: Recommended dosage 1%-5%, using a hot process; add EL-12 when the oil phase temperature is 70-75°C and pre-mix evenly. Agricultural emulsifiable concentrates/water-based emulsions: Recommended dosage 3%-8%, used with appropriate solvents; proceed to production only after passing dilution stability tests. Metalworking fluids: Recommended dosage 5%-15%, as the core component of emulsifying and lubricating parts. Industrial cleaning agents: Recommended dosage 2%-10%, used with alkaline additives or solvents to enhance degreasing performance. Precautions Before use, be sure to consult the product safety data sheet (MSDS) and follow general industrial hygiene practices. It is recommended to wear protective gloves and safety goggles during operation to avoid prolonged direct contact. If the product accidentally splashes into the eyes, rinse immediately with plenty of water for at least 15 minutes and seek medical attention promptly. The product should be used as soon as possible after opening; any unused portion should be sealed and stored to prevent moisture absorption and contamination. For more technical parameters (such as hydroxyl value, cloud point, HLB value, etc.), please contact Guoli Chemical to obtain batch test reports.

Question 3

How to purchase Castor Oil Ethoxylate EL-12? What is the minimum order quantity?

Accepted Answer

To purchase Castor Oil Ethoxylate EL-12, please contact the sales team of Guoli Chemical directly; the database does not disclose the minimum order quantity or specific price. Detailed Explanation Castor Oil Ethoxylate EL-12 (CAS No.: 61791-12-6) is a nonionic surctant product from Haian Guoli Chemical Co., Ltd. Due to its excellent emulsifying, wetting, and dispersing properties, it is widely used in cosmetics, pesticide formulations, textile auxiliaries, metalworking fluids, and industrial cleaning agents. Currently, the official database shows that this product is available in various packaging specifications, but the specific price is quoted as "price negotiable" and is not listed as a fixed unit price on the public page. Since the prices of chemical raw materials are greatly influenced by market conditions, purchase volume, custom requirements, etc., Guoli Chemical adopts a one-on-one quotation mechanism by the sales team to ensure the most timely and competitive solution for customers. As for the minimum order quantity (MOQ), the current product database does not include this parameter. It is recommended to confirm it together when inquiring. Purchase Channels and Packaging Specifications ItemDetails ManucturerHaian Guoli Chemical Co., Ltd. Packaging Specifications50kg plastic drum / 200kg plastic drum / IBC tote Price Model(Data source: Guoli Chemical database, for reference only) Minimum Order QuantityThis parameter is not available; please consult the sales team How to Get a QuoteContact the sales department via the Guoli Chemical official website, phone, or email, and provide the required quantity and specifications to receive a formal quote Application Suggestions Before contacting for purchase, it is recommended to clarify the following information so that the sales team can quickly provide an accurate plan: Target Use: Specify whether you plan to use EL-12 for cosmetic solubilization, pesticide emulsification, or industrial cleaning scenarios. The sales team can recommend the optimal batch based on the application. Estimated Volume: Inform the monthly/annual estimated usage and the initial trial order quantity, which helps confirm whether the minimum order quantity matches your needs. Technical Requirements: If there are special index requirements (e.g., HLB range, acid value upper limit), communicate in advance to confirm whether the product meets them. Precautions The above price and minimum order quantity information is sourced from the Guoli Chemical database (updated: June 2026) and is currently marked as "for reference only." The actual order terms shall be subject to the latest written contract. Castor Oil Ethoxylate EL-12 is a non-hazardous, non-flammable liquid. It should be transported and stored as ordinary chemicals, but after purchase, follow the product safety instructions and store in a cool, dry place (5-40°C). Sample requests generally require separate evaluation. If you need to test the product performance first, you can make a sample request to the sales team when inquiring.

Question 4

Does castor oil polyoxyethylene ether EL-12 meet environmental requirements? Can a test report be provided?

Accepted Answer

Castor oil polyoxyethylene ether EL-12 has good environmental compliance and meets the basic requirements of current green chemical products Detailed description The environmental advantages of castor oil polyoxyethylene ether EL-12 are mainly reflected in three aspects. First, natural source of raw materials - this product uses natural castor oil as the starting raw material instead of a purely petroleum-based synthetic route, which reduces the carbon footprint of the product and dependence on non-renewable resources from the source. Second, the product has excellent biodegradability and belongs to the rapidly biodegradable surctant category. After use, when entering the environmental water body, it can be effectively decomposed by microorganisms without causing long-term cumulative pollution. Third, the product has low toxicity to aquatic organisms, belonging to the low-toxicity level, and has a relatively small impact on the aquatic ecosystem under normal use and discharge conditions. From a toxicological perspective, EL-12 has an acute oral toxicity LD₅₀ greater than 5000 mg/kg, which is actually non-toxic; the skin irritation test and eye irritation test results are both non-irritating, with no skin sensitization, and its safe application in the field of personal care products has been verified over the long term. These characteristics allow the product to be used safely in application scenarios that directly or indirectly contact the human body, such as cosmetics and agrochemical formulations. It needs to be honestly stated that regarding formal third-party test reports (such as ROHS, REACH compliance reports, biodegradability test reports, SDS/MSDS documents, etc.), the database has not yet collected specific test report numbers and issuing institutions. It is recommended to directly contact the sales or technical department of Haian Guoli Chemical Co., Ltd. We can provide corresponding compliance test documents and declarations according to your specific needs (such as export region regulations, customer audit requirements, etc.). Environmental performance parameters Test itemParameter index BiodegradabilityRapidly biodegradable Aquatic toxicityLow toxicity Acute oral toxicity (rat LD₅₀)> 5000 mg/kg (actually non-toxic) Acute dermal toxicity (LD₅₀)> 2000 mg/kg Skin irritationNon-irritating Eye irritationNon-irritating Skin sensitizationNone Heavy metal content≤ 10 mg/kg Arsenic content (As)≤ 2 mg/kg Flash point (open cup)> 150℃ Raw material sourceNatural castor oil Application suggestions For applications with strict environmental compliance requirements (such as exporting EU cosmetics, ECO-cert certified formulations, bio-based content certified products, etc.), EL-12 has natural advantages due to its natural origin and non-ionic characteristics. In formulation design, this product can replace some ethoxylated synthetic alcohol surctants, helping formulators achieve the goal of developing "green formulations." It is recommended that before introducing the formula, apply for the corresponding batch certificate of analysis (COA) from Guoli Chemical and confirm the applicability of required specific regulations (such as EU REACH registration, ECOCERT/COSMOS certification). Ways to obtain test reports Contact the sales department of Guoli Chemical and provide the specific types of reports you need (ROHS, REACH, SDS, Halal, biodegradability test report, etc.) If there are special regulatory requirements (such as US FDA, EU CPNP), you can ask Guoli Chemical to assist in providing corresponding compliance declarations or raw material declarations Each product shipment is accompanied by a standard COA (Certificate of Analysis), covering routine physical and chemical indicators

Question 5

What are the advantages of Castor Oil Polyoxyethylene Ether EL-12 compared to other similar products?

Accepted Answer

According to the technical data from Guoli Chemical, the core advantages of Castor Oil Polyoxyethylene Ether EL-12 lie in its **excellent emulsifying ability** and the **extremely high safety and formulation compatibility** derived from natural castor oil, making it outstanding in fields requiring efficient, mild, and stable formulations. The following is a detailed explanation of its significant advantages over similar products: #### 1. Highly Effective Emulsifying Core Performance EL-12 is a nonionic O/W (oil-in-water) emulsifier. The number of ethylene oxide adducts (EO=12) in its molecular structure has been optimized to significantly reduce the oil-water intercial tension. - **Broad-spectrum emulsifying power**: It has an efficient emulsifying effect on mineral oils, animal and vegetable oils, and various organic solvents, quickly forming stable, fine emulsions. - **Low dosage, high efficiency**: It achieves ideal emulsification results at relatively low addition concentrations, helping to optimize formulation costs. #### 2. Excellent Safety and Mildness This is a key advantage that distinguishes EL-12 from many traditional emulsifiers, especially suitable for personal care products. - **Non-toxic and non-irritating**: Acute oral toxicity LD50 > 5000 mg/kg, classified as practically non-toxic. Skin and eye irritation tests both show **no irritation**, and there is no sensitization. - **Natural origin**: Based on natural castor oil, it aligns with the current market demand for green, mild, and sustainable raw materials. #### 3. Excellent Chemical Stability and Compatibility - **Broad chemical tolerance**: Maintains stable surce activity in acidic, alkaline, and hard water media, adapting to complex formulation systems. - **Nonionic nature**: Widely compatible with anionic, cationic, and other nonionic surctants, offering high formulation design flexibility without ilure due to ionic conflicts. #### 4. Key Physicochemical Data Reference | Item | Technical Index | | :--- | :--- | | **Appearance (25℃)** | Light yellow to yellow transparent oily liquid | | **Type** | Nonionic surctant | | **Main Component** | PEG-12 Castor Oil | | **CAS No.** | 61791-12-6 | | **HLB Value (Reference)** | Approximately 8-9 (moderate, conducive to formulating O/W emulsions) | | **Flash Point (Closed Cup)** | > 200℃ | | **Skin Irritation** | Non-irritating | #### 5. Application Areas and Recommendations Based on its advantages, EL-12 performs exceptionally well in the following fields: - **Personal Care Products**: As a solubilizer and emulsifier for creams, lotions, and cleansing oils, providing a fine skin feel without burdening the skin. - **Pesticide Formulations**: As an emulsifier for emulsifiable concentrates (EC) and oil-in-water emulsions (EW), improving the thermodynamic stability of pesticide formulations and their emulsification performance during field dilution. - **Industrial Fields**: Used in metalworking fluids and industrial cleaners for its emulsifying, lubricating, and penetrating effects. #### 6. Notes - Although EL-12 has good chemical stability, it should be stored sealed in a cool, dry place. The recommended storage temperature is 5-40℃, avoiding extreme temperatures and prolonged contact with moisture or water vapor to prevent affecting product quality. - When compounding with other raw materials, it is recommended to conduct small-scale experiments to determine the optimal addition ratio and process conditions.

Question 6

How to store Castor Oil Polyoxyethylene Ether EL-12? What is the shelf life?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-12 should be sealed and stored in a cool, dry place with a temperature controlled between 5-40°C. The shelf life is typically 2 years under proper unopened storage conditions. Detailed Description Castor Oil Polyoxyethylene Ether EL-12 is a chemically stable nonionic surctant that is resistant to acids and alkalis, and is not prone to deterioration under normal conditions. The key to storage lies in preventing moisture, high temperatures, and contamination. After opening, it should be sealed immediately to avoid prolonged exposure to air, which could cause slow moisture absorption or oxidation, thereby affecting its emulsification performance and formulation effectiveness.Regarding the shelf life, there is currently no clear official shelf life data in the Guoli Chemical product database, but according to industry practices and the chemical stability of such products, under strictly observed storage conditions, the recommended usage period for unopened original packaging is typically 2 years from the date of manucture. For products beyond this period, it is recommended to test and confirm that key indicators (such as pH value, hydroxyl value, emulsifying power) have not significantly changed before use. Technical Parameters The following are product parameters related to storage (Data source: Guoli Chemical product database): ParameterDescription AppearanceLight yellow to yellow transparent oily liquid Chemical stabilityStable under normal conditions, resistant to acids and alkalis Flash point (open cup)>150 °C Freezing point HygroscopicityLow Moisture content≤0.5% Application Recommendations To ensure consistent batch performance of the product, it is recommended to follow the "first in, first out" inventory management principle. When taking materials, use clean and dry tools to avoid introducing saliva, sweat, or other chemical impurities. If long-term storage is required, it is recommended to conduct small-sample performance verification before large-scale production. Precautions Do not use corrosion-prone containers such as iron for long-term storage; stainless steel, polyethylene, or lined containers are recommended. The storage area should avoid strong oxidizers, strong acids, and strong alkalis to prevent accidental mixing and deterioration. When temperature drops below -10°C in winter, solidification may occur, which is a physical change. It can still be used after slowly warming to room temperature and stirring evenly, without affecting quality. Once opened, it should be used within 6 months to ensure optimal performance.

Question 7

What safety precautions should be taken when using Castor Oil Polyoxyethylene Ether EL-12?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-12 is non-hazardous, low-toxicity, and non-irritating, but routine chemical handling procedures should still be followed, with focus on personal protection, storage conditions, and emergency response. Detailed description Castor Oil Polyoxyethylene Ether EL-12 (CAS No.: 61791-12-6) is a non-ionic surctant derived from natural castor oil, with overall good safety. Toxicological data show an oral LD50 in rats > 5000 mg/kg and dermal LD50 > 2000 mg/kg, classifying it as practically non-toxic; it is non-irritating to skin and eyes, and non-sensitizing to skin. The product has a flash point > 200 °C (closed cup), is a non-flammable liquid, has low toxicity to aquatic organisms, and is readily biodegradable. These characteristics make it relatively safe to use, but caution should still be exercised. In practical handling, although the product has high safety, prolonged or heavy exposure may still cause discomfort. It is recommended to use in a well-ventilated area; if ventilation is inadequate, wear appropriate respiratory protection. Must wear protective gloves, safety glasses, and protective work clothing to avoid splashes onto skin and eyes. After handling, thoroughly wash exposed areas. Do not eat or drink in the work area. Wash hands after contact with the product before touching other items to prevent indirect contamination. For storage, keep the product in a cool, dry, well-ventilated warehouse, and keep containers tightly sealed to prevent moisture absorption. Storage temperature should be controlled between 5-40 °C, avoiding extreme heat or freezing that could affect product quality. Keep away from incompatible materials such as strong oxidizers, strong acids, and strong bases. It is recommended to use corrosion-resistant containers such as stainless steel, polyethylene, or plastic-lined iron drums. Avoid long-term outdoor storage to prevent rain and sun exposure. Emergency response key points Leak emergency treatment Small leaks: Absorb with inert absorbent materials such as sand, vermiculite, etc., collect in a sealed container and dispose according to regulations. Large leaks: Dike to contain, prevent spreading to sewers or waterways. Transfer to a spare container using an explosion-proof pump for recovery or disposal. Ventilate the leak area and flush residues with plenty of water; collect flush water into the wastewater treatment system. Firefighting measures The product is a non-flammable liquid, but may decompose at high temperatures generating irritating fumes. In case of surrounding fire, use water spray, foam, dry powder, or carbon dioxide to extinguish. Firefighters should wear self-contained breathing apparatus and full protective clothing, and avoid directing water streams directly at the leaking material. First aid measures Route of exposureTreatment measures InhalationImmediately move to fresh air. If breathing is difficult, give oxygen and seek medical attention. Skin contactImmediately remove contaminated clothing and wash skin thoroughly with plenty of running water and soap. If discomfort occurs, seek medical attention. Eye contactImmediately lift eyelids and rinse with running water or saline for at least 15 minutes. If discomfort occurs, seek medical attention. IngestionRinse mouth, do not induce vomiting, drink plenty of water immediately, and seek medical attention. Application recommendations In daily formulation use, EL-12, as an O/W emulsifier, is widely used in cosmetics, pesticide formulations, textile auxiliaries, metalworking fluids, and industrial cleaners. Determine the dosage based on the specific formulation system and pay attention to compatibility with other surctants. As a non-ionic type, it can be widely compounded with anionic, cationic, and non-ionic auxiliaries, but long-term stability should be evaluated when used with strong acid or strong base systems. Notes Avoid direct discharge of leaked material into the environment; although low-toxic, it may cause local eutrophication. Transport and store as non-hazardous goods, but still comply with general chemical storage regulations. Use the product as soon as possible after opening; seal unused portions to prevent moisture absorption and deterioration. Data source: Safety information from Guoli Chemical for Castor Oil Polyoxyethylene Ether EL-12.

Question 8

How to use Castor Oil Polyoxyethylene Ether EL-12? What is the recommended dosage?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-12 is a general-purpose nonionic surctant with flexible usage. It can be directly added to the oil phase or water phase and stirred evenly. The recommended dosage is usually 1%~10% of the total formula, and the specific dosage varies depending on the application field. Detailed Description Castor Oil Polyoxyethylene Ether EL-12 (PEG-12 Castor Oil) is a light yellow to yellow transparent oily liquid at room temperature, with good fluidity and dispersibility. In actual use, this product is soluble in most organic solvents and can be dispersed or dissolved in water. During general operation, it can be directly added to the oil phase of the formula system, mixed evenly with oil-soluble ingredients, and then emulsified with the water phase; or it can be directly added to the water phase according to process requirements. Since it is a nonionic surctant, it has good tolerance to acids, bases, and hard water, and can be widely compatible with anionic, cationic, and nonionic additives. In the emulsification process, it is recommended to use high-shear or homogenization equipment to assist emulsification to obtain finer and more stable emulsion particle sizes. Operating at room temperature or slightly heated (30~50°C) helps reduce product viscosity and improve mixing efficiency. This product is derived from natural castor oil, mild and low-irritation, and can be safely used in personal care formulations. Application Recommendations Depending on the application field, the recommended dosage is as follows: Application FieldRecommended Dosage (Percentage of Total Formula)Usage Key Points Cosmetic Creams/Lotions2%~6%Add to the oil phase, heat and mix at 75~80°C, then homogenize for emulsification Makeup Remover Oil/Bath Products3%~8%Directly add to the oil phase and mix, shake well before use Pesticide Emulsifiable Concentrate (EC)5%~10%Mix evenly with pesticide technical material and solvent, self-emulsifies upon dilution Pesticide Emulsion in Water (EW)2%~5%Use high-shear emulsification to form a stable oil-in-water emulsion Textile Spinning Oil3%~8%Compound with other smoothing agents and antistatic agents Metalworking Fluid5%~12%Add to the oil phase as an emulsifying and lubricating component Industrial Cleaner1%~5%Compound with surctants to enhance degreasing and decontamination ability Fragrance/Essential Oil SolubilizationFragrance:EL-12 = 1:2~1:5Premix the fragrance with EL-12 evenly, then dilute with water Note: The above dosages are industry experience reference ranges. The actual amount should be determined through experimental optimization based on the specific formula system and process conditions. Precautions The product may become turbid or increase in viscosity at low temperatures, which is a normal physical phenomenon. Before use, it can be warmed at 25~40°C and stirred evenly without affecting product performance. Storage temperature should be controlled at 5~40°C. Avoid freezing or long-term high-temperature storage. After opening, seal as soon as possible to prevent moisture absorption. When used for solubilizing fragrances or essential oils, it is recommended to first fully mix EL-12 with oily components to form a transparent and uniform liquid, then slowly add water and stir to effectively prevent turbidity or precipitation. When used in special fields such as pesticides, it is recommended to first conduct a small-scale test to verify emulsification stability and compatibility before large-scale formulation. During operation, it is recommended to wear protective gloves and goggles, maintain good ventilation, and avoid prolonged skin contact.

Question 9

What industries and processes are Castor Oil Polyoxyethylene Ether EL-12 mainly used in?

Accepted Answer

Castor Oil Polyoxyethylene Ether EL-12 is widely used in five major industries: cosmetics, pesticide formulations, textile auxiliaries, metalworking fluids, and industrial cleaning. Its core process roles include O/W emulsification, solubilization, wetting, dispersion, and lubrication. Detailed Description Castor Oil Polyoxyethylene Ether EL-12 (PEG-12 Castor Oil) is a nonionic surctant produced by the addition polymerization of natural castor oil with ethylene oxide. With its excellent emulsifying ability, outstanding chemical tolerance (stable in acidic, alkaline, and hard water media), and low irritation properties, this product plays a key auxiliary role in multiple industrial fields. Its molecular structure enables efficient emulsification of various oil phases and organic solvents, significantly reducing oil-water intercial tension and forming stable oil-in-water (O/W) emulsions. In the cosmetics and personal care industry, EL-12 is primarily used as a nonionic solubilizer and emulsifier in formulations such as creams, lotions, cleansing oils, and bath products. It effectively solubilizes oil-soluble components like fragrances and essential oils, giving the product a fine skin feel. In the pesticide formulation field, it serves as an efficient emulsifier for emulsifiable concentrates (EC) and oil-in-water emulsions (EW), ensuring uniform dispersion of active pesticide ingredients in water, enhancing wetting and spreading properties of the spray liquid, and significantly improving field application efficacy. In the textile industry, EL-12 is used in spinning oils, soft finishing agents, and high-temperature leveling agents, imparting smoothness and antistatic properties to fibers and helping dyes to be applied evenly. In the field of metalworking fluids, EL-12 acts as an emulsifying and lubricating component in semi-synthetic and emulsifiable cutting fluids and grinding fluids, promoting the dispersion of the oil phase to form stable emulsions while providing good boundary lubrication to protect workpieces and tools. In industrial cleaning agents and degreasers, this product performs triple functions of wetting, penetrating, and emulsifying, quickly removing oil and grease from surces such as metal and plastic, and is suitable for a variety of water-based and semi-water-based cleaning formulations. Application Industry and Process Correspondence Application Industry Specific Process/Product Functional Role Cosmetics and Personal Care Creams, lotions, cleansing oils, bath products, fragrance solubilization O/W emulsifier, solubilizer Pesticide Formulations Emulsifiable concentrate (EC), Oil-in-water emulsion (EW) Efficient emulsifier, wetting and spreading adjuvant Textile Auxiliaries Spinning oils, soft finishing agents, high-temperature leveling agents Smoothing agent, antistatic agent, leveling auxiliary Metalworking Fluids Semi-synthetic cutting fluids, emulsifiable cutting fluids, grinding fluids Emulsifier, boundary lubricant Industrial Cleaning Agents Water-based/semi-water-based cleaners, degreasers Wetting and penetrating agent, oil emulsifier Application Recommendations EL-12 is a nonionic surctant that can be widely compatible with nonionic, anionic, and cationic auxiliaries, offering high formulation flexibility. In emulsification processes, it is recommended for O/W systems, especially suitable for emulsifying mineral oils, animal and vegetable oils. Good wetting of substrates and dispersion of solid particles can be achieved at low concentrations. It is recommended to perform gradient tests during formulation development to determine the optimal dosage. The product is derived from natural castor oil raw materials, has good biodegradability, and is particularly suitable for formulations with requirements for environmental friendliness and skin mildness. Precautions Store at temperatures between 5–40°C, avoiding extreme heat or freezing to prevent affecting product quality. Keep the container sealed to avoid contact with moisture and humidity, preventing moisture absorption. Keep away from incompatible substances such as strong oxidizers, strong acids, and strong bases. Although this product is non-hazardous and has very low toxicity, it is still recommended to wear protective gloves and goggles during handling and follow conventional industrial hygiene practices.

Question 10

What are the physicochemical technical parameters of Castor Oil Polyoxyethylene Ether EL-12?

Accepted Answer

The physicochemical technical parameters of Castor Oil Polyoxyethylene Ether EL-12 (PEG-12 Castor Oil) cover multiple indicators such as appearance, surce activity, solubility, and purity. Its core parameters include an HLB value of 6.8, cloud point of 50~60°C, and effective content ≥99%, making it a low-foaming nonionic surctant. Detailed Description Castor Oil Polyoxyethylene Ether EL-12 (CAS No.: 61791-12-6) has a molecular formula of C57H104O9(C2H4O)n (n≈12), an average molecular weight of about 1460, and appears as a light yellow to yellow transparent oily liquid. It is a nonionic surctant with excellent chemical stability, maintaining stable surce activity in acidic, alkaline, and hard water media, and has low hygroscopicity. This product is derived from natural castor oil raw materials through an addition polymerization process, exhibiting mild and low-irritation characteristics. From surce activity parameters, the HLB value of EL-12 is 6.8, indicating relatively strong lipophilicity, making it suitable for use as a water-in-oil (W/O) or auxiliary oil-in-water (O/W) emulsifier. Its 1% aqueous solution has a cloud point of 50~60°C, surce tension of approximately 32~35 mN/m, and critical micelle concentration (CMC) in the range of about 1×10⁻⁴ to 5×10⁻⁴ mol/L, demonstrating excellent intercial tension reduction capability. The foam characteristic is low foam, meaning it is less prone to foam interference in practical applications. In terms of solubility and physicochemical tolerance, this product is easily soluble in organic solvents such as ethanol and ether, and is dispersed rather than completely dissolved in water. It has a high effective content (≥99%), acid value ≤1.0, saponification value 105~125 mgKOH/g, hydroxyl value 75~90 mgKOH/g, moisture content ≤0.5%, and free alcohol content ≤2.0%, indicating high purity, low by-products, and stable and reliable quality. Technical Parameters Parameter ItemIndex or ValueTest Condition/Remarks Chemical NamePEG-12 Castor OilCAS No.: 61791-12-6 Molecular FormulaC57H104O9(C2H4O)n, n≈12— Average Molecular Weight~1460— AppearanceLight yellow to yellow transparent oily liquid25°C visual inspection Ion TypeNonionic— HLB Value6.8— Cloud Point50~60°C1% aqueous solution Effective Content≥99%Solid content pH Value5.0~7.01% and 5% aqueous solution Density1.00~1.05 g/cm³25°C Acid Value≤1.0 mgKOH/g— Saponification Value105~125 mgKOH/g— Hydroxyl Value75~90 mgKOH/g— Iodine Value45~55 gI₂/100g— Moisture≤0.5%— Free Alcohol≤2.0%— Kinematic ViscosityApprox. 300~500 mm²/s25°C Low Shear ViscosityApprox. 300~500 mPa·s25°C Refractive IndexApprox. 1.470~1.47525°C Surce TensionApprox. 32~35 mN/m1% aqueous solution Critical Micelle Concentration (CMC)Approx. 1×10⁻⁴ ~ 5×10⁻⁴ mol/L— Flash Point>150°COpen cup method Solidification Point— Foam CharacteristicLow foam— UnsaturationApprox. 1.8~2.2 mol/kgEstimated from iodine value Chemical StabilityResistant to acid and alkaliStable under general conditions SolubilityEasily soluble in organic solvents such as ethanol and ether, dispersible in water— Heavy Metal Content≤10 mg/kg— Arsenic Content≤2 mg/kg— Packaging Specification50kg plastic drum, 200kg plastic drum, IBC toteNational standard packaging Application Suggestions Since the HLB value of EL-12 is 6.8, with relatively strong lipophilicity, it is recommended for use in formulations requiring a low HLB emulsifier, such as emulsifiable concentrate (EC) pesticide formulations, water-in-oil creams, and metalworking emulsifying oils. In personal care products, it can be compounded with high HLB emulsifiers to achieve broader emulsification adaptability. It is suggested that the HLB value of the compounded system be maintained between 8 and 12 to obtain more stable O/W emulsions. In industrial cleaning formulations, a recommended dosage is 2%~8% (based on active matter), utilizing its dual wetting and emulsifying effects to enhance oil removal performance. Precautions This product is a non-hazardous substance.

Castor Oil Ethoxylate EL-12

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Property	Value
CAS No.	61791-12-6
Molecular Formula	C57H104O9(C2H4O)n, n≈12
Appearance	Pale yellow to yellow liquid
Ionic Type	Nonionic
Avg. Molecular Weight	~1460
Cloud Point	50~60°C (1%aq. soln.)
Active Content	≥99%
pH Value(1%)	5.0~7.0
pH Value(5%)	5.0~7.0
Iodine Value	45~55
Solubility	Readily soluble in ethanol, ethyl ether and other organic solvents; dispersible in water
Surface Tension	~32~35 mN/m (1%aq. soln.)
CMC	~1×10^-4 ~ 5×10^-4 mol/L
Acid Value	≤1.0
Saponification Value	105~125
Hydroxyl Value	75~90
Moisture	≤0.5
Density	1.00~1.05 (25°C)
Kinematic Viscosity	~300~500 mm²/s (25°C)
Refractive Index	~1.470~1.475 (25°C)
Flash Point	>150°C (open cup)
Hygroscopicity	Low
Chemical Stability	Stable under normal conditions; resistant to acids and alkalis
Foam Property	Low foam
Alkali Resistance	Good
Unsaturation	~1.8-2.2 mol/kg (estimated from Iodine Value)
Melting Point	< -10°C (freezing point)
Low Shear Viscosity	~300~500 mPa·s (25℃)
Solid Content	≥99%
Free Alcohol	≤2.0%
Heavy Metal	≤10 mg/kg
Arsenic	≤2 mg/kg

Castor Oil Ethoxylate EL-12

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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