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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Description of key information

The calculated value of the dissociation constant of ATLEN SK (pKa) is in the range 10.04-12.00.
We can state that ATLEN SK not dissociate under environmental conditions.

Key value for chemical safety assessment

pKa at 20°C:
10.04

Additional information

Lowest calculated value of the dissociation constant of ATLEN SK (pKa) was taken for chemical safety assessment whereas pKa is in the range 10.04-12.00. According to the guidelines REACH the dissociation constant value above 10.00 indicates the lack of dissociation of ATLEN SK in environmental conditions.