Polyether L-44 (Poloxamer 124) is not classified as a hazardous chemical, with an acute oral toxicity (rat) LD₅₀ > 5,000 mg/kg, making it an actually non-toxic substance, GHS classified as non-hazardous. Nevertheless, it is recommended to wear chemical safety goggles, appropriate protective gloves and clothing, and to use in a well-ventilated area, avoiding inhalation of aerosols or vapors generated by heating. Hands and exposed skin should be thoroughly washed after handling, and eating, drinking, and smoking are prohibited in the workplace.
The primary skin irritation index of the product is less than 0.5, indicating no irritation; skin sensitization and mutagenicity are both negative. However, it may cause mild to moderate eye irritation, leading to conjunctival redness and swelling. Although this is reversible damage, special care must be taken to avoid direct eye contact.
Polyether L-44 should be stored in a cool, dry, and well-ventilated warehouse, keeping the container tightly sealed to prevent moisture absorption and contamination. The recommended storage temperature should not exceed 40°C, and repeated freeze-thaw cycles should be avoided. The product is not flammable, but it should be kept away from heat sources, sparks, and open flames, and should not be stored with strong oxidizers, strong acids, or strong bases. Check the container integrity and label clarity before use.
| Contact Type | Emergency Response Measures |
|---|---|
| Skin Contact | Immediately flush with plenty of water and soap for at least 15 minutes; remove contaminated clothing and wash it before reuse; if skin irritation or discomfort occurs, seek medical advice. |
| Eye Contact | Immediately flush with plenty of water or normal saline for at least 15 minutes, occasionally lifting the upper and lower eyelids; if wearing contact lenses, remove them if safe to do so and continue flushing; seek medical attention immediately, and present the product safety data sheet. |
| Inhalation | Move the affected person to fresh air and maintain an open airway; if breathing difficulty occurs, administer oxygen and seek medical attention immediately. |
| Ingestion | Rinse mouth with water, do not induce vomiting (unless instructed by medical personnel); immediately drink 1–2 glasses of water to dilute; never give anything by mouth to an unconscious person; seek medical attention immediately. |
| Spill Handling | Small spills: cover with inert absorbent material (e.g., sand, vermiculite) and collect in a sealed container, dispose of according to local regulations. Large spills: contain with dikes to prevent entry into sewers or waterways, transfer with pumps or specialized tools to spare containers. Be aware of slip hazards when cleaning the floor. |
In applications such as polyurethane foam, industrial cleaning, metalworking fluids, pesticide formulations, and personal care products, the low-foaming property and chemical stability of Polyether L-44 allow safe use under high-pressure spraying and high-temperature conditions. However, it is still recommended to ensure adequate ventilation during formulation and production to avoid prolonged repeated exposure. Thermal decomposition of the product may generate irritating fumes, so exhaust ventilation should be ensured during baking or high-temperature processes.
Disposal should comply with local environmental regulations; do not discharge into sewers or waterways. Although the product is non-hazardous, waste should be managed according to general industrial chemical waste management requirements.