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Environmental fate & pathways

Henry's Law constant

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Reference
Endpoint:
Henry's law constant
Type of information:
calculation (if not (Q)SAR)
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Principles of method if other than guideline:
Calculation according to ECHA guidance R.16 (Equation R.16-4):Henry = VP x M / S
VP = vapor pressure (atm)
M = molecular weight (g/mol)
S = solubility (mg/L)


Key result
H:
0.153 Pa m³/mol
Remarks on result:
other: Calculated
Conclusions:
A Henry´s law constant of 0.153 Pa m^3/mol was calculated according to ECHA Guidance Chapter R.16

Description of key information

According to Annex VIII, no test is required for this endpoint. However, for PNEC calculation a Henry´s law constante of  0.153 Pa m^3/mol was calculated according to ECHA Guidance Chapter R.16 (2016).  

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
0.153
at the temperature of:
20 °C

Additional information