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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB

Due to the rapid hydrolysis of butyril chloride, the environmental assessment is mainly based on its hydrolysis product butyric acid (CAS 107-92-6).

Butyric acid is not P/vP since it is readily biodegradable. The hydrolysis product butyric acid is also not B/vB based on an experimentally determined log Kow of 0.79. Butyric acid is not T since, the lowest available chronic value is > 0.01 mg/L (algae: 72h ErC10 = 33.7 mg/L) and the substance has no toxicological relevant labelling.