Polyethylene Glycol PEG-8000 is recognized as a safe chemical raw material with low toxicity and low irritation. According to toxicological data, its acute toxicity is extremely low – the oral LD₅₀ in rats is >50,000 mg/kg, and the dermal LD₅₀ in rabbits is >20,000 mg/kg, classifying it as a practically non-toxic substance. Under specified conditions of use, this product has no skin irritation, only slight eye irritation (may cause transient discomfort and redness), no sensitization (does not cause skin or respiratory allergic reactions), and no genotoxicity (negative in vitro mutagenicity test). There are currently no known reports of carcinogenicity or reproductive/developmental toxicity, showing excellent overall safety performance.
From an environmental perspective, PEG-8000 exhibits low toxicity to aquatic organisms and is readily biodegradable, and does not persist or accumulate in the environment for a long time. However, in the event of a large spill, the product should still be prevented from entering sewers or surface waters, and should be recovered or disposed of according to standard emergency procedures to avoid unnecessary burden on the aquatic environment.
| Safety Indicator | Data |
|---|---|
| Acute Oral Toxicity (Rat LD₅₀) | > 50,000 mg/kg |
| Acute Dermal Toxicity (Rabbit LD₅₀) | > 20,000 mg/kg |
| Skin Irritation | No irritation |
| Eye Irritation | Slight irritation (transient discomfort and redness) |
| Skin/Respiratory Sensitization | No sensitization |
| Mutagenicity (In Vitro) | Negative |
| Carcinogenicity | No known carcinogenicity |
| Reproductive Toxicity | No reproductive/developmental toxicity |
| Environmental Toxicity (Aquatic Organisms) | Low toxicity |
| Biodegradability | Readily biodegradable |
Given the high safety of PEG-8000, it is widely used in pharmaceuticals (ointment base, suppositories, tablet excipients, ophthalmic thickening agent), cosmetics (moisturizer, emulsion stabilizer), personal care products, food, and biotechnology (protein purification, cell fusion). For industrial applications such as coatings, textiles, and metalworking, no special protection is required under normal operating conditions, but the following basic safety guidelines are recommended for large-scale operations.