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Environmental fate & pathways

Henry's Law constant

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The HLC was measured by the means of a dynamic method (wetted wall (desorption) column) at a temperature of 25 °C. The wetted wall column
equilibrates an organic solute between a thin film of water and a concurrent flow of nitrogen gas. Compound-loaden water is introduced into the wetted wall column where it comes in contact with a compound-free gas stream flowing concurrently. The knowledge of flow rates and compound masses present in the separated phase streams enables the direct calculation of HLC. The determined HLC accounts for 0.818 Pa*m³/mol (25 °C) (Altschuh et al., 1999).

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