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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 technically not feasible
Justification for data waiving:
the study does not need to be conducted because the analytical method is not sensitive enough
the study does not need to be conducted because the substance has no ionic structure

Description of key information

In accordance with the specific rules for adaptation from Column 1 in REACH Annex IX, the study does not need to be conducted if it is scientifically not possible to perform the test. As the substance’s nature is as a multi-constituent substance with a highly variable composition of closely related constituents it would effectively render any results of such a study uninterpretable, in addition the study is also not applicable as a suitable analytical method is unlikely to be able to be developered and that the Substance has no ionic structures. It is considered justified to omit this study on the grounds that it is not technically feasible and not necessary.

Key value for chemical safety assessment

Additional information