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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 Henry’s Law Constant of 2.97 Pa * m3/mol at 25 °C was calculated using SRC HENRYWIN v3.10. The data refer to the uncharged molecule. At environmental conditions the molecule is expected to be ionised (pKa = 11.09; IUCLID Ch. 4.21), therefore a pH-corrected Henry's Law constant was calculated according to the REACH Guidance document (2008). The resulting Henry's Law constant was 2.41 E-04 at pH 7 (range pH 5 to 9: 2.41E-06 to 2.39 E-02 Pa m³/mol; BASF SE, 2013).