Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Hydrolysis as a function of pH

In accordance with column 2 of REACH Annex VIII, the study does not need to be conducted, because the substance is readily biodegradable.

Additional information

Additional information on stability:

In air, the photodegradation of 1,3 -butanediol by OH-radicals was estimated to be 14.2329 E-12 cm³/molecule*sec, leading to a half-life of approx. 27 hours (1.1 days) (ECT, 2008).

First order rate constants for photochemical oxidation in water by OH radicals were reported to be 2.2E09 L/mol*sec at pH 7 (Buxton et al., 1988; RL4).

No data on phototransformation in soil are available.