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Description of key information

Henry's Law Constant: 3.78E+04 Pa m3mol-1at 12°C

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
37 300 000
at the temperature of:
25 °C

Additional information

The transfer of a substance from the water phase to the gas phase can be estimated by means of the Henry’s Law Constant (HLC). No measured value for this parameter is available. The HLC can be estimated from the ratio of the vapour pressure (VP) to the water solubility (WS).


HLC = (VP x MW)/WS


Where MW is molecular weight.


The estimated Henry's Law Constant value is 3.73E+07 Pa m3mol-1 at 25°C (1.78E+07 Pa m3mol-1at 12°C)