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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

5 -Chlorovaleryl chloride is expected to rapidly hydrolyse in contact with water to form 5 -chlorovaleric acid (CAS 1119 -46 -6) and hydrogen chloride (CAS 7647-01-0). Due to this rapid hydrolysis, the assessment of most environmental fate parameters for the parent compound in aqueous/moist environments is considered to be of low relevance. 5 -Chlorovaleryl chloride is qualified as readily biodegradable whereas the concept of biodegradation does not apply to the inorganic degradation product. For the other environmental fate parameters estimates were made by means of EPISuite. For the inorganic hydrolysis product no EPISuite calculation could be performed as inorganic substances are outside the applicability domain of EPISuite.

All available relevant environmental fate data is tabulated below.


Key value for assessment


Phototransformation in air:

- 5 -chlorovaleryl chloride

Half-life in air: ca. 71 hours

AOPWIN calculation

- 5 -chlorovaleric acid

Half-life in air: ca. 106 hours

AOPWIN calculation


- 5 -chlorovaleryl chloride

Readily biodegradable

Experimental result


- 5 -chlorovaleric acid

log BCF = 0.5

BCFBAF calculation


- 5 -chlorovaleric acid

Koc = 14.35

KOCWIN (log Kow method)

Henry’s law constant:

- 5 -chlorovaleric acid

HLC = 0.0457 Pa·m³/mol

HENRYWIN (Bond method)