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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Link to relevant study record(s)

Reference
Endpoint:
Henry's law constant
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
No data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Qualifier:
no guideline followed
Principles of method if other than guideline:
Calculated from the measured water solubility of the substance and measured vapour pressure for the test substance
GLP compliance:
no
Key result
H:
0.065 Pa m³/mol
Temp.:
25 °C
Conclusions:
Henry's law constant was calculated to be 0.065 Pa.m3/mol at 25 °C based on experimental water solubility (100 g/L at 20°C or 107 g/L at 25°C) and experimental vapour pressures (17 Pa at 20°C or 24 Pa at 25°C) for the test substance. The value indicates that a low rate of volatilisation from surface water is expected.

Description of key information

Henry's law constant was calculated to be 0.0647 Pa.m3/mol at 25 °C based on experimental water solubility and experimental vapour pressures for the test substance. The value indicates that a low rate of volatilisation from surface water is expected.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
0.065
at the temperature of:
25 °C

Additional information