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Physical & Chemical properties

Dissociation constant

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Description of key information

A pKa value of 10.73 is reported (HSDB, 2010). 

Key value for chemical safety assessment

pKa at 20°C:
10.73

Additional information

A pKa value of 10.73 is reported. This indicates dimethylamine will exist almost entirely in the cation form at pH values of 5 to 9 and therefore volatilization from water surfaces and moist soil surfaces is not expected to be an important fate process.