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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:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Qualifier:
no guideline followed
Principles of method if other than guideline:
The Henry's Law constant is calculated using reliable and experimentally determined values for vapour pressure and water solubility.
Key result
H:
7 876.3 Pa m³/mol
Temp.:
20 °C
Conclusions:
The Henry's law constant was calculated to be 7876.3 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 7876.3 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.

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

- water solubility: 0.27 mg/L at 20 °C (see IUCLID section 4.8)

- vapour pressure: 11 Pa at 20 °C (see IUCLID section 4.6)

- Molecular weight: 193.33 g/mol (see IUCLID section 1.1)

 

 

 

 

Description of key information

The Henry's law constant was calculated to be 7876.3 Pa m3/mol.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
7 876.3
at the temperature of:
20 °C

Additional information

The Henry's law constant was calculated to be 7876.3 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.

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

- water solubility: 0.27 mg/L (20 °C)

- vapour pressure: 11 Pa (20 °C)