Castor Oil Polyoxyethylene Ether EL-20 is a low-toxicity, non-hazardous substance. However, during use, personal protection must be ensured, operating procedures must be followed, and proper storage must be maintained to ensure safe and efficient application.
Detailed Explanation
Castor Oil Polyoxyethylene Ether EL-20 (PEG-20 Castor Oil) is a nonionic surfactant, classified as low-toxicity and non-hazardous, with no acute toxicity (rat oral LD50 > 2000 mg\/kg), non-flammable, and non-explosive. However, this does not mean safety operations can be ignored. It has mild irritancy to skin and eyes, and repeated or prolonged contact may cause skin defatting and dryness. Therefore, proper protective equipment should still be worn during routine operations.
In formulation applications, EL-20 exhibits high chemical stability towards acids, alkalis, and hard water, and shows excellent compatibility with anionic, cationic, and other nonionic surfactants. However, contact with strong oxidizers should be avoided, as adverse reactions may occur under strong oxidative conditions. Additionally, under high temperature or open flame conditions, the product may decompose, producing irritating fumes such as carbon monoxide. Therefore, it should be kept away from heat sources and open flames.
From an environmental perspective, this product may cause slight adverse effects to aquatic organisms. Therefore, spills must not be discharged into sewers, water sources, or soil. In the event of a spill, immediately absorb with inert absorbing materials (such as sand, vermiculite) and collect into a sealed container, then dispose of it through qualified institutions according to local regulations.
Handling and Storage Precautions
Personal Protection
- Hand Protection: Wear chemical protective gloves made of nitrile rubber or neoprene to avoid prolonged skin contact.
- Eye Protection: Wear chemical safety goggles to prevent splashes into eyes.
- Respiratory Protection: No special protection is required under normal operating conditions; if aerosols or dust may be generated during operation, it is recommended to wear a particulate respirator.
- Body Protection: Wear regular work clothes, thoroughly wash hands after operation, and prohibit eating, drinking, or smoking in the workplace.
Storage Conditions
- Store in a cool, dry, well-ventilated warehouse, keeping containers tightly closed.
- The storage temperature should be controlled between 5–35°C, avoiding freezing or high-temperature environments (high temperature may cause changes in product properties).
- Store separately from strong oxidizers, strong acids, and strong alkalis.
- Store in original containers or well-sealed inert material containers.
Emergency Measures
- Skin Contact: Immediately remove contaminated clothing, rinse with plenty of water and soap for at least 15 minutes. If irritation persists, seek medical attention.
- Eye Contact: Immediately rinse with plenty of water or saline for at least 15 minutes. If irritation or pain persists, seek medical attention immediately.
- Inhalation: Move to fresh air. If discomfort occurs, seek medical attention.
- Ingestion: Do not induce vomiting. Rinse mouth with water and seek medical attention immediately.
Application Recommendations
In practical formulation use, EL-20 serves as an O\/W emulsifier, suitable for emulsifying mineral oils, animal and vegetable oils. The following points should be noted in specific application scenarios:
- Textile Dyeing and Printing: When used as a leveling agent and softener, control the dosage to achieve ideal penetration and softening effects, while avoiding excessive amounts that may cause rinsing difficulties.
- Pesticide Emulsifier: When formulating environmentally friendly formulations such as emulsions in water (EW) and microemulsions (ME), stir thoroughly to ensure stable dispersion of active ingredients.
- Cosmetic Formulations: When used in creams, lotions, shampoos, etc., due to its mild skin feel and good compatibility, it can be safely compounded with other surfactants.
- Metalworking Fluids: In cutting fluids and grinding fluids, it provides emulsification, lubrication, and anti-rust functions. Add according to the formula ratio, no special treatment is required.
- Industrial Cleaning: Leveraging its excellent degreasing and anti-redeposition capabilities, it is suitable for hard surface cleaning and industrial degreasing formulations. It maintains good fluidity even at low temperatures (avoid freezing).
Note: The above data is sourced from the Guoli Chemical Product Database, serving only as a safety operation and application guide, and does not constitute a guarantee of product performance. Users should take appropriate measures based on actual conditions.
