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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Environmental fate & pathways

Henry's Law constant

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Henry's law constant
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
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:
Key result
6.229 Pa m³/mol
20 °C
The Henry's Law Constant has been calculated to be 6.23 Pa m³/mol at 20 °C indicating that the substance is expected to have a low potential to volatilize from the water phase.

Description of key information

Henry's law constant: 6.23 Pa m³/mol (according to ECHA Guidance R.16, 2016)

Key value for chemical safety assessment

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

Additional information

The Henry's Law constant (HLC) was calculated according to ECHA Guidance R.16 (ECHA, 2016) using the molecular weight, water solubility and vapour pressure as input parameters. A HLC of 6.23 Pa m³/mole resulted indicating a low potential of volatilization from the water phase to the atmospheric compartment.