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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Dissociation constant

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Administrative data

Link to relevant study record(s)

Description of key information

In accordance with column 2 of Annex IX of the REACH Regulation (EC) No. 1907/2006, the study for dissociation constant need not be conducted if it not scientifically possible to perform the test. There is no analytical method sensitive enough to determine the dissociation constant and so no test has been performed.

Key value for chemical safety assessment

Additional information

In a supporting study, the dissociation constant of dimethyltin dichloride is pKa = 3.54. This study cannot be sufficiently relied upon to use this as the key value.