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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Henry's Law constant

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Administrative data

Link to relevant study record(s)

Description of key information

The substance will not evaporate into the atmosphere from the water surface.
5-Chlorovaleryl 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 the volatilisation potential of the parent compound is considered to be of low relevance. Therefore, the assessment is based on the data avilable for the hydrolysis product 5-chlorovaleric acid. For 5-chlorovaleric acid the Henry's law constant was calculated to be 0.0457 Pa·m³/mol based on the Bond Contribution Method.

Key value for chemical safety assessment

Additional information

QSAR-disclaimer

In Article 13 of Regulation (EC) No 1907/2006, it is laid down that information on intrinsic properties of substances may be generated by means other than tests, provided that the conditions set out in Annex XI (of the same Regulation) are met. 

According to Annex XI of Regulation (EC) No 1907/2006 (Q)SAR results can be used if (1) the scientific validity of the (Q)SAR model has been established, (2) the substance falls within the applicability domain of the (Q)SAR model, (3) the results are adequate for the purpose of classification and labeling and/or risk assessment and (4) adequate and reliable documentation of the applied method is provided. 

For the assessment of the hydrolysis product 5 -chlorovaleric acid (Q)SAR results were used for the Henry's law constant. The criteria listed in Annex XI of Regulation (EC) No 1907/2006 are considered to be adequately fulfilled and therefore the endpoint(s) sufficiently covered and suitable for risk assessment.