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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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)
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
GLP compliance:
no
Key result
H:
76.9 Pa m³/mol
Temp.:
20 °C
Conclusions:
The value for the Henry´s Law constant was calculated as 76.9 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: 76.9 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):
76.9
at the temperature of:
20 °C

Additional information

The Henry´s Law constant was derived with the formula (Equation R.16-4) given in the ECHA Guidance from 2016 (Guidance on information requirements and Chemical Safety Assessment, Chapter R.16: Environmental exposure assessment). The value was calculated as 76.9 Pa m3/mol based on the measured values for vapour pressure (1040 Pa), molecular weight (130 g/mol) and water solubility (1760 mg/L) of Ethyl isovalerate.