Registration Dossier

Environmental fate & pathways

Hydrolysis

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Description of key information

In contact with water the substance will hydrolyse slowly.

Key value for chemical safety assessment

Additional information

The half-life of 1.2-epoxybutane was determined to be 156 hours after incubation in 1 mmol/l Tris-HCl buffer (pH 7.4) [Gervasi & al., 1985].

Otherwise 1.2 -epoxybutane is readily biodegradable (cf. chapter 5.2). In Annex VIII of Regulation (EC) No 1907/2006, it is laid down that the study on hydrolysis does not need to be conducted if the substance is readily biodegradable.