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Environmental fate & pathways

Henry's Law constant

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Description of key information

The Henry's Law constant has been estimated from the ratio of the vapour pressure to the water solubility (Equation R16-11 of the of the guidance on information requirements and chemical safety assessment - chapter R16: environmental exposure assessment (ECHA 2008)) as follows:
HENRY = ( VP x MOLW ) / SOL = 0.000000052 Pa.m3.mol

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
0

Additional information

The Henry's Law constant has been estimated from the ratio of the vapour pressure to the water solubility (Equation R16-11 of the of the guidance on information requirements and chemical safety assessment - chapter R16: environmental exposure assessment (ECHA 2008)) as follows:

HENRY = ( VP x MOLW ) / SOL = 0.000000052 Pa.m3.mol

with:

VP = Vapour pressure (Pa) = 2.07x10-7

MOLW = Molecular weight (g/mol) = 201.31

SOL = Solubility (mg/L) = 800 mg/L