Registration Dossier
Registration Dossier
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EC number: 211-330-1 | CAS number: 638-29-9
Endpoint summary
Administrative data
Description of key information
Phototransformation in air
After evaporation or exposure to air, valeryl chloride and its hydrolysis product valeric acid 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 the estimate for valeryl chloride may be of low relevance.
Hydrolysis
In contact with water valeryl chloride will hydrolyse rapidly.
Biodegradation
As the parent compound rapidly hydrolyses in aqueous system the assessment of the biodegradability based on the hydrolysis product valeric acid, which is readily biodegradable (according to OECD criteria).
Bioaccumulation
For the hydrolysis product valeric acid, significant accumulation in organisms is not to be expected.
Adsorption / desorption
Adsorption of the hydrolysis product valeric acid to solid soil phase is not expected.
Henry`s Law constant
The hydrolysis product valeric acid will not evaporate into the atmosphere from the water surface.
Distribution modelling
Over time, the hydrolysis product valeric acid will preferentially distribute into the compartment water (95.9%) and slightly into the compartment air (3.7%).
Additional information
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