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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
Reference:
Composition 0
GLP compliance:
no
Remarks:
Calculation with a formula
Test material information:
Composition 1
Key result
H:
23 Pa m³/mol
Temp.:
20 °C
Conclusions:
The value for the Henry´s Law constant was calculated as 23.0 Pa m3/mol with the formula given in ECHA Guidance from 2016 (Guidance on information requirements and Chemical Safety Assessment, Chapter R.16: Environmental exposure assessment).

Description of key information

Henry´s Law constant: 23 Pa m3/mol derived with the formula in ECHA Guidance R.16.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
23
at the temperature of:
20 °C

Additional information

The Henry´s Law constant was derived with the formula given in the ECHA Guidance from 2016 (Guidance on information requirements and Chemical Safety Assessment, Chapter R.16: Environmental exposure assessment). This value was based on the measured values for vapour pressure (4280 Pa), molecular weight (102 g/mol) and water solubility (19000 mg/L) of the test substance. The Henry´s Law constant was calculated as 23.0 Pa m3/mol.