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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Reference
Endpoint:
Henry's law constant
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Key result
H:
0.436 Pa m³/mol
Temp.:
20 °C
Conclusions:
The Henry's law constant was calculated to be 0.436 Pa m3/mol. The Henrys law constant is calculated according to ECHA guidance R.16: Environmental exposure assessment (ECHA 2016) using experimental data for water solubility and vapour pressure.
Executive summary:

The Henry's law constant was calculated to be 0.436 Pa m3/mol (ECHA guidance R.16: Environmental exposure assessment (ECHA 2016)).

The calculation is based on the following input parameters (please refer to IUCLID section 4):

- water solubility: 7799 mg/L

- vapour pressure: 25 Pa at 20 °C

Description of key information

The Henry's law constant was calculated to be 0.436 Pa m3/mol at 20 °C. The Henrys law constant is calculated according to ECHA guidance R.16: Environmental exposure assessment (ECHA 2016) using experimental data for water solubility and vapour pressure.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
0.436
at the temperature of:
20 °C

Additional information

The Henry's law constant was calculated to be 0.436 Pa m3/mol (calculated according to ECHA guidance R.16: Environmental exposure assessment (ECHA 2016)).

The calculation is based on the following input parameters (please refer to IUCLID section 4):

- water solubility: 7799 mg/L

- vapour pressure: 0.25 hPa at 20 °C