From the perspective of environmental compliance, Stearic Acid Polyoxyethylene Ether SG-40 (PEG-40 Stearate) is classified as an environmentally friendly product. According to the safety instructions in the product database, this substance is not classified as a hazardous substance or mixture under GHS, and exhibits low toxicity to aquatic organisms (fish LC₅₀ > 100 mg/L), far below the threshold requiring special warning. This means that under normal use and discharge conditions, its negative impact on the aquatic ecological environment is minimal.
In terms of biodegradability, the product complies with OECD 301 standards and is classified as readily biodegradable. This means that in natural water bodies or sewage treatment systems, SG-40 can be effectively decomposed by microorganisms and will not accumulate in the environment for a long time. At the same time, its bioaccumulation potential is expected to be low—although the octanol-water partition coefficient (log Pow) is relatively large, due to its high molecular weight and low bioavailability, it is not easily enriched in the food chain.
In addition, in practical applications, the product can effectively reduce the usage of other harmful ingredients in formulations. For example, as an emulsifying and dispersing carrier in pesticide formulations, it can optimize the dispersion state of active pesticide ingredients, thereby improving liquid utilization and reducing reliance on organic solvents, indirectly lowering the environmental burden. In fields such as metalworking fluids, its trend of replacing traditional mineral oil-based emulsifiers also reflects the direction of green chemistry development.
| Environmental Indicator | Value/Conclusion | Reference Standard |
|---|---|---|
| Biodegradability | Readily biodegradable (Pass) | OECD 301 |
| Aquatic toxicity (fish LC₅₀) | > 100 mg/L (Low toxicity) | OECD 203 |
| Bioaccumulation potential | Expected low, not easily enriched | — |
| GHS hazard classification | Not classified as hazardous substance | Globally Harmonized System of Classification and Labelling of Chemicals (GHS) |
| Degradability in wastewater | Can be degraded by microorganisms after acclimation | — |
| Heavy metals/hazardous substances | Free of harmful heavy metals and restricted substances | — |
Regarding the provision of test reports, we need to be frank: This Q&A system currently cannot directly generate or retrieve complete third-party test report documents. As a professional manufacturer, Guoli Chemical can typically provide relevant supporting documents to formally cooperating clients, including:
If you have a formal procurement need and require the above documents, it is recommended to directly contact the Guoli Chemical sales team, specifying the type of report needed and its purpose (e.g., export customs clearance, downstream customer audit, system certification, etc.), so that valid test reports for the corresponding batch can be retrieved. Please also note that the product shelf life is 12 months (from the production date), and expired products need to be re-tested and confirmed before continued use. When storing, keep the temperature between 5°C ~ 35°C to avoid high-temperature melting or low-temperature solidification affecting product performance.