Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

dissociation constant
Data waiving:
study technically not feasible
Justification for data waiving:

Data source

Materials and methods

Results and discussion

Dissociating properties:
not determined

Applicant's summary and conclusion

Test not technically feasible, no dissociation constant can be determined.
Executive summary:

The OECD 112 test guideline presents three testing options for determination of the dissociation constant of a test substance in water. The three tests are identified and described in the test guideline as the titration, spectrophotometric and conductometric methods. Significant effort was expended in two of these three methods to try and determine this parameter for the material however this proved to be not technically feasible within the boundaries of the tests. The third test was not considered by the Sponsor to be likely to succeed based on the low water solubility and the results of the other two tests. Agreement was therefore reached with the laboratory that the dissociation constant could not be established for this material. An expert statement by the laboratory is attached to this ESR.