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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Reference
Endpoint:
Henry's law constant
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Remarks:
Calculation from experimental data, acceptable with restrictions.
Principles of method if other than guideline:
Calculation according to Equation R.16-4 in Chapter R.16: Environmental Exposure Estimation (ECHA 2016).
GLP compliance:
no
Remarks:
Calculation
Key result
H:
578 Pa m³/mol
Temp.:
25 °C
Atm. press.:
0.17 hPa
Conclusions:
Henry's law constant for the test substance is calculated to be 578 Pa m3/mol at 25°C.
Executive summary:

The Henry's law constant for the test substance was calculated according to ECHA guidance R.16: Environmental exposure assessment (ECHA 2016), using experimental data for water solubility and vapour pressure. The Henry's law constant is calculated to be 578 Pa m3/mol at 25°C. This result is reliable with restrictions (Klimisch 2) as the experimental values were reported from two good quality studies (Klimisch 1).

Description of key information

The Henry's law constant is calculated to be 578 Pa m3/mol at 25°C.

Key value for chemical safety assessment

Henry's law constant (H) (in Pa m³/mol):
578
at the temperature of:
25 °C

Additional information

Henry's law constant for the test substance was calculated according to ECHA guidance R.16: Environmental exposure assessment (ECHA 2016), using experimental data for water solubility and vapour pressure. The Henry's law constant is calculated to be 578 Pa m3/mol at 25°C. This result is reliable with restrictions (Klimisch 2) as the experimental values were derived from two good quality studies (Klimisch 1).