Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Dissociation constant

Currently viewing:

Administrative data

Link to relevant study record(s)

dissociation constant
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is hydrolytically unstable (half-life less than 12 hours)
Justification for type of information:
In accordance with Column 2 adaptation statement of REACH Annex IX, information requirement section 7.16, this study does not need to be conducted since the substance is hydrolytically unstable (t ½ < 12 hr).

Description of key information

In accordance with section 7.16 of Column 2 of REACH Annex IX, the study does not need to be conducted when the test substance is hydrolytically unstable with a half-life that is less than 12 hours. As the test material was hydrolytically unstable in aqueous solution it is considered justified to omit this study.

Key value for chemical safety assessment

Additional information