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Environmental fate & pathways

Henry's Law constant

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Description of key information

A Henry’s Law constant of 1.24 x 10-4 Pa.m3/mol can be calculated from the vapour pressure and water solubility.  This indicates a preference for water compared to air, and hence a low rate of volatilisation from surface water to air.

Key value for chemical safety assessment

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

Additional information