Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

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Parent compound: In contact with water, the substance will hydrolyse rapidly (t1/2 < 10 min) (SafePharm, 2003).

In accordance with column 2 of REACH Annex VII, the study does not need to be performed if the substance is readily biodegradable or inorganic. 2-Ethylhexanoyl chloride hydrolyses rapidly and forms 2-ethylhexanoic acid and hydrochloric acid. 2-Ethylhexanoic acid is readily biodegradable (EKO LAB, 1998), while hydrochloric acid is inorganic.

In air, 2 -ethylhexanoyl chloride is expected to be photodegraded by OH-radicals with a half-life of 34 h (BASF SE, 2008).This estimation refers to dry air. In mist, rain, droplets and aerosols hydrolysis will be the major fate process in air due to the short half-life in aqueous solutions.

Hydrolysis product 2 -ethylhexanoic acid: A half-life of 47 h was calculated for the degradation in the atmosphere by OH-radicals (BASF SE, 2009).

No data are available on phototransformation in water or in soil.