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Environmental fate & pathways

Henry's Law constant

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Description of key information

Calculated from vapour pressure and water solubility

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
at the temperature of:
20 °C

Additional information

Henry's Law constant was calculated from the experimentally determined values for vapour pressure and water solubility.

Henry's Law constant (20°C, pure water): 3.2×10-13atm×m3/mol = 3.3×10-7Pa×m3/mol

Henry's Law constant (20°C, in buffered solution at pH 4.8): 3.1×10-13atm×m3/mol = 3.2×10-7Pa×m3/mol