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Henry's Law constant

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Reference
Endpoint:
Henry's law constant
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Principles of method if other than guideline:
The Henry's Law Constant (HLC) was calculated using the water solubility, molecular weight and vapour pressure according to the following formula: (vapour pressure*molecular weight)/water solubility. This approach is in accordance with ECHA Guidance R.16 (2016).
GLP compliance:
no
Key result
H:
113.21 Pa m³/mol
Temp.:
20 °C
Conclusions:
The calculated Henry's Law Constant is 133.21 Pa*m3/mol at 20 °C, indicating that the substance evaporates from the water surface to the atmosphere.
Executive summary:

The Henry’s Law Constant (HLC) was calculated according to the ECHA Guidance R.16 (ECHA, 2016) using the molecular weight [g/mol], water solubility [mg/L] and vapour pressure [Pa] as input parameters.

The calculation resulted in an HLC of 113.21 Pa*m^3/mol, indicating that the substance has a potential to evaporate from the water phase to the atmospheric compartment.

Description of key information

113.21 Pa m3/mole (Equation R.16-4, ECHA guidance R.16, 2016)

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
113.21
at the temperature of:
20 °C

Additional information

The Henry’s Law Constant (HLC) was calculated according to the ECHA Guidance R.16 (ECHA, 2016) using the molecular weight [g/mol], water solubility [mg/L] and vapour pressure [Pa] as input parameters.

The calculation resulted in an HLC of 113.21 Pa*m^3/mol, indicating that the substance has a potential to evaporate from the water phase to the atmospheric compartment.