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Environmental fate & pathways

Henry's Law constant

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Description of key information

From the water surface, the substance will not evaporate into the atmosphere.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
0.019
at the temperature of:
25 °C

Additional information

A read across was performed to formic acid in order to have a reliable value for the calculation of PNECsed and PNEC soil via the equilibrium partitioning method. The Henry's Law Constant (HLC) of formic acid was determined to be 0.019 Pa m³/mol at 25 °C (Khan & Brimblecomb, 1992).