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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Henry's Law constant

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Administrative data

Link to relevant study record(s)

Description of key information

QSAR by HENRYWIN v3.20 and via VP/WSol, is 0.00321 and 0.3071 Pa.m3/mol, resp. K2, reliable

Key value for chemical safety assessment

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

Additional information

Atmosphere, air in soil, worker (inhalation):

The highest value, 0.3071 Pa.m3/mol, should be retained as a worst-case for modelling of atmospheric, soil and occupational exposures.

Aquatic environment:

The lowest value, 3.21 mPa.m3/mol, should be retained as a worst-case for modelling of aquatic exposure.