Registration Dossier

Physical & Chemical properties

Dissociation constant

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Dissociation constant: <2, <2, 4.3, 5.46, 6.66, 12.3 (6 values recorded) at 25°C

Key value for chemical safety assessment

Additional information

Dissociation constant values of <2, <2, 4.3, 5.46, 6.66, 12.3 are reported at 25 °C in a handbook which has been subject to peer-review and in which the original data sources are traceable. The result (Martell 1968) is considered to be reliable and selected for key study.

In Lacour 1999, dissociation constant values of 0.5, 1.6, 4.6, 5.9, 7.2, 12.5 at 25°C were reported for ATMP-H, using a potentiometric method.

In a published handbook (Beilstein), dissociation constant values of 2.2, 2.2, 4.5, 5.9, 7.3, 11.4 at 25 ± 0.2°C are reported for the substance. The original source is not available for review and no further information is available. The reliability of this result is not assignable.