Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Sodium methyl cocoyl taurate is a substance of unknown, variable composition or biological origin (UVCB). The substance is readily biodegradable and will rapidly be removed from natural water compartments as well as from wastewater in sewage treatment plants. Therefore, hydrolysis is considered to be a negligible pathway. The substance has a log Kow/log Koc < 3 indicating negligible potential to adsorb to soil and sediment particles. Indirect photodegradation is not an important environmental fate process since the substance is not expected to evaporate into the atmosphere due to its very low vapor pressure of < 1 Pa at 25°C. Due to its high water solubility (> 250 g/L in aqua bidest), ready biodegradability and low potential for adsorption to soil and sediment particles, the main target for environmental distribution is the aquatic environment. Due to the low log Kow (log Kow < 3), Sodium methyl cocoyl taurate is regarded as not bioaccumulative, based on the screening criteria given in Regulation (EC) No. 1907/2006, Annex XIII. 

In conclusion, Sodium methyl cocoyl taurate is effectively removed from the environment by biotic degradation processes. Due the high water solubility and low adsorption potential, the main route of exposure for aquatic organisms such as fish will be via water. Furthermore, the substance is not bioaccumulative.