Stearic acid polyoxyethylene ether SG-6 (PEG-6 Stearate) exhibits outstanding environmental compliance and is classified as an environmentally friendly low-toxicity substance. According to ecotoxicological data verified by authoritative testing institutions in the Guoli Chemical database, this product fully meets current environmental requirements for green chemistry and clean production, making it an ideal substitute for traditional high-VOC, poorly biodegradable surfactants.
In terms of ecological degradability, the 28-day biodegradation rate of SG-6 exceeds 60% (OECD 301B standard), placing it in the readily biodegradable category. This means that after entering water bodies or soil, it can be rapidly decomposed by microorganisms into water and carbon dioxide, without persistent residues in the environment. Meanwhile, this product has no bioaccumulation potential, does not enrich along the food chain, and poses an extremely low long-term risk to aquatic ecosystems. Toxicity tests on common environmental indicator organisms show: fish 96-hour median lethal concentration (LC50) > 100 mg/L, water flea 48-hour median effect concentration (EC50) > 100 mg/L, and algal 72-hour growth rate inhibition concentration (ErC50) > 100 mg/L, all within the low ecotoxicity range.
Furthermore, SG-6 does not hydrolyze to release free acids or irritating by-products during use. Its chemical structure is stable, and under normal industrial discharge conditions, it does not generate environmentally harmful decomposition products, fully complying with increasingly stringent environmental regulations at home and abroad.
| Environmental/Toxicological Indicator | Measured Data | Assessment Conclusion |
|---|---|---|
| Biodegradability (OECD 301B, 28 days) | > 60% | Readily biodegradable |
| Bioaccumulation potential | None | Not bioaccumulative |
| Fish acute toxicity (96h LC50) | > 100 mg/L | Low toxicity |
| Water flea acute toxicity (48h EC50) | > 100 mg/L | Low toxicity |
| Algal growth inhibition (72h ErC50) | > 100 mg/L | Low toxicity |
| Phosphorus content | Phosphorus-free | Does not cause eutrophication |
Regarding the test report you are concerned about, Guoli Chemical provides a batch Certificate of Analysis (COA) with each product shipment. This report is issued by the company's quality inspection center based on relevant standards, covering routine physical and chemical indicators such as appearance, hydroxyl value, acid value, saponification value, moisture, pH, and is accompanied with the batch goods. For specific clients' third-party testing report needs (e.g., SGS testing, REACH compliance testing, RoHS testing, etc.), our company can assist clients in contacting authoritative testing institutions with CMA/CNAS qualifications for sample submission. The relevant testing costs and lead time depend on the specific test items. If you need a test report for a recent batch or wish to apply for a special testing service, it is recommended to contact Guoli Chemical's sales and customer service department directly with your specific requirements.