Registration Dossier

Physical & Chemical properties

Dissociation constant

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The test substance is a salt and ionized at all pH values in the logarithm range of 1-14, thus the study on the determination of the dissociation constants in water is waived

Key value for chemical safety assessment

Additional information

The test substance is a sodium salt. The sodium part of the test substance is positively charged at all pH values in the logarithm range of 1-14. The thiocyanate part of the test substance is the conjugate base of thiocyanic acid. The latter is a strong acid and has a log pK, value of <1. It means that the thiocyanate part of the test substance is negatively charged at all pH values in the logarithm range of 1-14. . Since the test substance is salt and ionized at ail pH values in the logarithm range of 1-14, the study on the determination of the dissociation constants in water is not required. This is also supported by the measured conductivity value of 77.5 S x m-1.