Registration Dossier

Environmental fate & pathways

Henry's Law constant

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The Henry's Law Constant of 5.57 Pa m3/mol for neutral form and 0.000000426 Pa m3/mol for protonated form was estimated using the model HENRYWIN v. 3.10 (2000).

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
5.57
at the temperature of:
25 °C

Additional information

There are no experimental data for volatilisation of dicyclohexylamine.

The Henry’s Law Constant calculated with HENRYWIN v. 3.10 (2000) for the neutral form of dicyclohexylamine has been calculated to be 5.57 Pa m³/mol at 25 °C (Bayer Industry Services, 2005c).

The recalculation using the latest version of HENRYWIN v. 3.20 gives the same result - 5.57 Pa m3/mol at 25°C.

This data indicates that the neutral form of dicyclohexylamine is highly volatile from aqueous solutions according to the scheme of Thomas (1990).