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Environmental fate & pathways

Henry's Law constant

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Description of key information

Henry's Law constant was calculated for PFBE at 1 atmosphere pressure (101 300 Pa) from the water solubility experimentally determined by DuPont of 15.6 mg/l at 20°C.
KH= 101 300 (Pa) x 246 (M.W.PFBE) / 15.6 g/m3(solubility) =1 597 423 Pa.m3mol-1or15.77atm.m3mol-1
This value is in agreement with literature values quoted for Henry's Law Constant in the range 3 - 100 atm.m3.mol-1

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
1 597 423
at the temperature of:
20 °C

Additional information

Henry's Law constant was calculated for PFBE at 1 atmosphere pressure (101 300 Pa) from the water solubility experimentally determined by DuPont of 15.6 mg/l at 20°C.

KH= 101 300 (Pa) x 246 (M.W.PFBE) / 15.6 g/m3(solubility) =1 597 423 Pa.m3mol-1or 15.77atm.m3mol-1

This value is in agreement with literature values quoted for Henry's Law Constant in the range 3 - 100 atm.m3.mol-1