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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 3.13 ± 0.13 at 24.6°C (equivalent to dimensional Henry's law constant 33 atm m3 mol-1).

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
3 340 000
at the temperature of:
25 °C

Additional information

A log Kaw value of 3.13 ± 0.13 at 24.6°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 33 atm m3 mol-1. This indicates a high potential for volatilisation from water.