According to the safety data of Guoli Chemical products, castor oil polyoxyethylene ether EL-90 is not classified as a hazardous chemical under normal use conditions and has very low health hazards. Toxicological studies show: its acute oral toxicity is extremely low, with a rat oral LD₅₀ > 5,000 mg/kg, classifying it as a low-toxicity substance; standard Draize skin irritation tests indicate no irritation; it may cause only mild reversible eye irritation, with conjunctival irritation scores typically below 15, and full recovery usually within 24 hours; based on available data, no clinically significant sensitization has been found; its volatility at room temperature is very low, posing minimal risk of inhaling aerosols or vapors during routine operations. Repeated or prolonged contact may cause skin dryness, but this is common with surfactant products and can be effectively avoided by wearing gloves.
Castor oil polyoxyethylene ether EL-90 performs excellently in environmental protection. Its ecotoxicological data shows low acute toxicity to fish (96-hour LC₅₀ > 100 mg/L), indicating low toxicity to aquatic organisms. More importantly, this product is biodegradable and does not easily persist or accumulate in the natural environment. Due to its strong hydrophilicity and low octanol/water partition coefficient, its bioaccumulation potential is extremely low, and it will not accumulate through the food chain. However, despite its low ecotoxicity, direct discharge of undiluted large quantities into water bodies should still be prevented to avoid local environmental load.
| Item | Index | Evaluation |
|---|---|---|
| Acute oral toxicity (rat LD₅₀) | > 5,000 mg/kg | Low toxicity |
| Skin irritation (Draize test) | No irritation | Safe |
| Eye irritation | Mild reversible irritation, recovery within 24 hours | Low risk |
| Skin sensitization | No clinically significant sensitization found | Safe |
| Inhalation risk | Very low volatility at room temperature, minimal risk | No special protection required for routine operations |
| Acute fish toxicity (96h LC₅₀) | > 100 mg/L | Low aquatic toxicity |
| Biodegradability | Biodegradable | Environmentally friendly |
| Bioaccumulation potential | Very low | Non-accumulative |
Castor oil polyoxyethylene ether EL-90 is widely used in agrochemicals, textile fibers, industrial emulsification, daily chemicals, metalworking fluids, leather auxiliaries, and other fields. Under normal industrial operating conditions, this product is highly safe, but it is still recommended to follow these basic protective measures:
Although this product is relatively safe, the following points should still be noted: In case of eye contact, immediately rinse with running water for at least 15 minutes and seek medical attention. In the event of a large spill, immediately construct a dike to prevent the spill from entering drainage systems or surface water bodies. Disposal of waste should be entrusted to a qualified professional waste treatment company and handled in compliance with regulations; do not discard into the natural environment. The product may solidify or become turbid at low temperatures; this is a normal physical change and does not affect performance after slow warming and mixing. Do not use open flames to directly heat the container.