Castor Oil Polyoxyethylene Ether EL-90 is made from natural castor oil through polymerization with ethylene oxide. Its molecular structure determines good environmental compatibility. According to the ecotoxicological data in the product safety information, this product is a biodegradable substance that does not easily persist or accumulate in the environment, meeting the basic requirements of modern environmental protection for green auxiliaries. Additionally, its strong hydrophilicity and low octanol/water partition coefficient result in extremely low bioaccumulation potential, preventing accumulation in organisms through the food chain.
Under the GHS classification system, EL-90 is not classified as a hazardous chemical under normal use conditions, with no physical, health, or environmental hazard categories. Its acute toxicity to aquatic organisms is low—the 96-hour median lethal concentration (LC50) for fish is greater than 100 mg/L, indicating that the impact on aquatic ecosystems is controllable under conventional use and reasonable discharge conditions.
However, although EL-90 has low toxicity and is biodegradable, the product safety information emphasizes: large quantities of undiluted product should be prevented from being directly discharged into water bodies. For disposal, it must be handed over to a qualified professional waste treatment operator for compliant treatment, and must not be arbitrarily discarded into the natural environment.
As of now, there is no electronic version of third-party environmental test reports for EL-90 available for direct download in the Guoli Chemical product database. If you require product RoHS, REACH, biodegradability test reports, or third-party certification documents such as SGS, it is recommended to obtain them through the following methods:
Environmental regulations for surfactants vary across different countries and regions (e.g., EU Detergents Regulation 648/2004, US EPA standards). If EL-90 is used in exported products or end applications subject to specific regulations, it is recommended to confirm the product's compliance status with Guoli Chemical technical personnel before use and request corresponding compliance statements or test documents according to the destination regulations.