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EC number: 615-064-0 | CAS number: 700874-87-9
Henry's Law constant
Administrative data
Link to relevant study record(s)
Description of key information
The Henry's Law Constant (HLC) of MOVE 3 is calculated to be between 3629677.42 and 9376666.67 Pa m3/mol (20°C).
The values indicates that MOVE 3 has a very high tendency to distribute from water to the gas phase.
For risk assessment purpose the HLC is set equal to 6500000 Pa m3/mol.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 6 500 000
- at the temperature of:
- 20 °C
Additional information
The Henry's Law Constant (HLC) of MOVE 3 is calculated according to the following equation:
Henry's Law Constant (HLC) = (VP x MOLW) / WS
(Reference: Guidance on Information Requirements and Chemical Safety Assessment_ Chapter R.16: Environmental Exposure Estimation_ Version 3_Equation R.16-4)
where:
VP = Vapour pressure (Pa) = 97000 Pa (at 20°C)
MOLW = Molecular Weight (g/mol) = 232 g/mol
WS = Water solubility (mg/L) = 2.4–6.2 mg/L (at 20°C)
As reported in Guidance on Information Requirements and Chemical Safety Assessment_Chapter
R.7a_v.6., substances with HLC values around 100 Pa·m3/mol, will have a rapid volatilisationfrom water.
Basing on the calculated Henry’s Law constant value, volatilization of Fluorosulfonic Adduct from water is expected to be very rapid.
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