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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 slowly evaporate into the atmosphere. Due to the ionic structure it is expected that the calculation overestimates the volatilisation into air.

Key value for chemical safety assessment

Additional information

The Henry’s Law Constant of 1.79 Pa * m3/mol at 25 °C is calculated within the EPI Suite v3.20 program by use of the Bond Estimation Method (BASF AG 2007). EPIWin v3.20 also has an experimental database match with 3.6 Pa * m3/mol, however the source of this value can not be determined. A data compilation of Yaws 2001 resulted in a HLC of 1.9 Pa * m3/mol.