Castor Oil Polyoxyethylene Ether EL-90 (PEG-90 Castor Oil) is not classified as a hazardous chemical under normal usage conditions. It poses no risk of flammability or explosion, and is neither an oxidizer nor a corrosive substance. Its acute oral toxicity is extremely low (rat oral LD50 > 5,000 mg\/kg), and skin irritation tests show it is non-irritating. It may cause only mild reversible eye irritation. However, repeated or prolonged contact may cause skin dryness, so operators are still advised to cultivate safe operating habits.
During use, ensure good ventilation in the operating area and avoid direct contact with eyes and skin. After operation and before eating, thoroughly wash hands and any potentially exposed body parts with soap and water. No eating, drinking, or smoking is allowed in the workplace. If the product becomes viscous or solidifies due to low temperatures, use indirect heating methods (e.g., warm water bath) to slowly melt and stir it evenly. Do not directly heat the container with an open flame.
| Protection Area | Protection Requirements |
|---|---|
| Hand Protection | Nitrile rubber gloves or chemical-resistant gloves are recommended for operations involving prolonged contact. |
| Eye Protection | Wear chemical safety goggles or a face shield during operation to prevent splashes into the eyes. |
| Body Protection | Ordinary long-sleeved work clothing is sufficient. For operations with splashing or large pouring, an impermeable apron is recommended. |
| Respiratory Protection | No special protection is required in well-ventilated areas. In confined spaces or when aerosols may be generated, wear a particulate filter half-mask. |
| Storage Condition | Specific Requirements |
|---|---|
| Storage Environment | Store indoors in a cool, dry, and well-ventilated warehouse, away from direct heat sources and sunlight. |
| Recommended Temperature | 5°C to 40°C. At low temperatures, solidification or cloudiness may occur; slow warming and mixing will restore performance. |
| Container Material | Stainless steel, high-density polyethylene (HDPE), or polypropylene (PP) recommended. Avoid prolonged direct contact with ordinary carbon steel. |
| Incompatible Substances | Should be stored separately from strong acids, strong bases, strong oxidizers, and hypochlorites. |
| Inventory Management | Follow the "first in, first out" principle. Re-seal containers promptly after opening. |
Skin Contact: Immediately remove contaminated clothing and wash thoroughly with plenty of running water and mild soap. If irritation persists, seek medical advice.
Eye Contact: Immediately open eyelids and rinse thoroughly with plenty of running water or saline solution for at least 15 minutes, turning the eyes to ensure complete rinsing. If wearing contact lenses and easy to remove, remove them immediately. If irritation persists, seek immediate medical attention.
Inhalation: Quickly move the affected person to fresh air and maintain an open airway. If breathing difficulties or persistent symptoms occur, seek medical attention immediately.
Ingestion: Do not give anything by mouth to an unconscious person. If the person is conscious, rinse the mouth with water and slowly give about 200 ml of water to dilute stomach contents. Do not induce vomiting. Seek medical attention immediately.
Spill Handling: Wear nitrile gloves and chemical goggles. Contain the spill with inert materials such as sand, vermiculite, etc., and prevent entry into drains or water bodies. Absorb liquid spills with absorbent material, collect in sealed containers, and dispose of according to local regulations.
Castor Oil Polyoxyethylene Ether EL-90 is widely used in pesticide emulsifiers, fiber finishes, textile auxiliaries, metalworking fluids, leather auxiliaries, and household chemicals. When used in formulations, it is recommended to conduct gradient tests within the typical nonionic surfactant dosage range (usually 1%-10% of the total formulation) based on the specific emulsification system and process conditions, to optimize the optimal addition amount.