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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

Additional information

The bond estimation method gives a value of 5.07E+00 Pa*m³/mol (HENRYWIN Program, v3.20; EPI Suite v4.11; BASF SE, 2013), which is representative for the uncharged molecule. The HLC calculated by vapor pressure and water solubility is 3.20E+01 (HENRYWIN v3.20; EPI Suite v4.11; BASF SE, 2013). At environmental conditions the molecule is expected to be ionised, therefore a pH-corrected HLC was calculated according to the REACH Guidance document (2008). The resulting Henry's Law constant was 1.80 E-03 Pa*m³/mol at pH 7 (BASF, 2013).

Based on the pH-corrected HLC, the substance will not evaporate from the water surface into the atmosphere.