Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Phototransformation in air

Parent compound valeryl chloride and hydrolysis product valeric acid:

After evaporation or exposure to air, the substance will be slowly degraded by photochemical processes.

This estimation refers to dry air. In mist, rain, droplets and aerosols, hydrolysis will be the major fate process of the acid chloride due to the short half-life in aqueous solution. Therefore this estimate may be of low relevance.


Parent compound valeryl chloride is determined to hydrolyse rapidly to valeric acid and HCL.

Hydrolysis product valeric acid: 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. Valeryl chloride hydrolyses rapidly and forms valeric acid and HCl. Valeric acid is readily biodegradable, while HCl is inorganic.