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Environmental fate & pathways

Henry's Law constant

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Description of key information

Henry's Law constant: Log Kaw 2.69 ± 0.13 at 21.7°C (equivalent to dimensional Henry's law constant 12 atm m3 mol-1).

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
1 195 640
at the temperature of:
25 °C

Additional information

A log Kaw value of 2.69 ± 0.13 at 21.7°C was determined in a reliable study conducted according to generally accepted scientific principles.

This is equivalent to a dimensional Henry's law constant value of 12 atm m3 mol-1. This indicates a high potential for volatilisation from water.