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Description of key information

Henry's Law constant is required for exposure assessment and derivation of PNECsoil. It has been estimated from Molecular weight (140 Mwt; g/mol), water solubility (S; 500 mg/l at 20'C) and vapour pressure (VP; 151 Pa at 20'C) using the relationship: H = (VP x MW) / S.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
42.3
at the temperature of:
20 °C

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