PEG-10 Stearate (SG-10) (PEG-10 stearate) is a classic nonionic fatty acid polyoxyethylene ester surfactant. Comprehensive toxicological assessment shows its high safety: acute oral toxicity is of low toxicity (rat LD50 > 5,000 mg/kg), 5% dilution is non-irritating to skin, non-sensitizing, non-genotoxic, and readily biodegradable. Nevertheless, in practical operations, it should be noted that the pure product causes mild reversible eye irritation, which is the most important aspect to be concerned about during use.
In daily use, it is recommended that operators wear chemical safety goggles, impermeable gloves, and appropriate protective clothing. The workplace should be well ventilated to avoid the formation of inhalable dust or aerosols. Eating, drinking, and smoking are prohibited during operation. After operation and before eating, hands and exposed skin should be thoroughly washed. If the product is used in formulations that come into direct contact with skin, such as cosmetics and personal care products, SG-10 should be diluted to an appropriate concentration and the formulation should be validated to ensure the final product is non-irritating to skin.
The product has good chemical stability, stable to acid, alkali, and hard water media, and exhibits good compatibility with various anionic, cationic, and nonionic surfactants. However, during storage, it should be kept separate from strong oxidizing agents and acids to avoid incompatible reactions. The storage environment should be cool, dry, and ventilated, with a recommended temperature not exceeding 40°C to prevent moisture absorption, caking, or deterioration. Containers must be kept tightly closed.
| Category | Specific requirements | Risk level |
|---|---|---|
| Eye protection | The pure product causes mild reversible eye irritation; chemical safety goggles must be worn | Key concern |
| Skin protection | 5% dilution is non-irritating, but prolonged or repeated contact with the pure product may cause dryness and discomfort; impermeable gloves are recommended | Routine precaution |
| Respiratory protection | Maintain good ventilation; use local exhaust ventilation if necessary to prevent inhalation of dust or aerosols | Routine precaution |
| Storage temperature | Recommended not to exceed 40°C; keep away from heat sources, sparks, and open flames | Routine precaution |
| Environmental discharge | Do not discharge large quantities into water bodies, soil, or sewers; spills must be collected and treated | Strictly prohibited |
Immediately remove contaminated clothing and rinse the affected area with plenty of running water and soap for at least 15 minutes. If persistent irritation or discomfort occurs, seek medical attention. The 5% dilution is non-irritating to skin, but the pure product should be rinsed thoroughly.
This is the most critical emergency. Immediately separate the eyelids and rinse thoroughly with running water or physiological saline for at least 15 minutes. Since the pure product can cause mild reversible eye irritation, if discomfort persists after rinsing, seek medical attention from an ophthalmologist without delay.
Move the patient to fresh air, keep in a semi-recumbent position, and maintain an open airway. If breathing is difficult, administer oxygen; if breathing has stopped, perform artificial respiration immediately and obtain emergency medical assistance.
Rinse the mouth thoroughly with water, drink plenty of lukewarm water, do not induce vomiting. Although acute oral toxicity is extremely low (LD50 > 5,000 mg/kg), for safety reasons, seek medical attention immediately and show the product safety instructions.
For small spills, absorb with sand, vermiculite, or inert material and collect into a closed container; for large spills, contain and transfer using an explosion-proof pump to an emergency container. Avoid the spill from entering drains or groundwater systems; rinse water must be collected and treated before discharge.
Suitable extinguishing media: water spray, alcohol-resistant foam, dry powder, carbon dioxide. Firefighters must wear positive-pressure self-contained breathing apparatus and full protective clothing. Runoff firefighting water should be collected and not discharged directly into the environment.