Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

As the rapid hydrolysis is the driving force for the fate and pathways of this substance, the abiotic degradation can be used to demonstrate fast degradation for this substance. This is justified as all decomposition products have been identified (key study on hydrolysis including Tier 3 approach, Brekelmans M.J.C. 2013). The most relevant degradation product (2-ethylhexanol) is readily biodegradable (> 79 % to 100 % in 14-d MITI-I test; NITE 2002). Biooxidation studies of 2-ethylhexanol in freshwater as well as in synthetic seawater indicate biodegradability of > 86% in 20 days (Price et al 1974). Both degradation products are not classified as hazardous to the environment. The other environmentally non-hazardous degradation product (TiO2) is inorganic and insoluble, lacking bioavailability, and therefore not relevant to be considered in CSA.