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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 dissociation constant of the carbamic acid component of the test material was estimated to be 5.31 ± 0.41 units using specialized predictive software.  From available literature references, the mean dissociation constant of the ethanol, 2-amino- component was determined to be 9.65 (%RSD = 2.55% using nine values from seven independent sources). The ethanol, 2-amino- component incorporated in the assessment also represents the major known degradation product of the carbamate.  The second degradation product, carbon dioxide, is a gas under normal atmospheric conditions.

Key value for chemical safety assessment

pKa at 20°C:

Additional information