Registration Dossier

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Hydrolysis studies show that isobutyric anhydride added to water rapidly converts to isobutyric acid. Thererfore, isobutyric acid data is being used by read across for most environmental fate and ecotox endpoints.

Biodegradation in water: screening tests

Isobutyric acid has been shown to be readily biodegradable as combined evidence from two biodegradation tests

1. - test similar to OECD TG 302 B (Hoechst AG, undated; RL2; KS)

2. - test similar to OECD TG 301 E (Henkel KGaA, 1983; RL3; WoE)

 

Biodegradation in water and sediment: simulation tests

Tests need not be conducted, as isobutyric acid is readily biodegradable.

 

Biodegradation in soil

Tests need not be conducted, as isobutyric acid is readily biodegradable.

 

Mode of degradation in actual use

Data for mode of degradation in actual use are not required under REACH.