Registration Dossier

Physical & Chemical properties

Dissociation constant

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The pKa for the equilibrium RN(C2H4OH)2O + H+ = RN'(C2H4OH)2OH (calculated) is:
5.01 ± 0.50 at 25 °C.

Key value for chemical safety assessment

Additional information

Due to difficulties to measure dissociation constants for complex UVCB mixtures with different dissociating species the dissociation constant pK of the test substance was calculated from the molecular structure with commercially available software. The pKa for the equilibrium RN(C2H4OH)2O + H+ = RN'(C2H4OH)2OH is: 5.01 ± 0.50 at 25 °C.