Registration Dossier
Registration Dossier
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EC number: 203-338-9 | CAS number: 105-85-1
Henry's Law constant
Administrative data
Link to relevant study record(s)
- Endpoint:
- Henry's law constant
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Principles of method if other than guideline:
- The Henry's Law Constant (HLC) was calculated using the water solubility, molecular weight and vapour pressure according to the following formula: (vapour pressure*molecular weight)/water solubility. This approach is in accordance with ECHA Guidance R.16 (2016).
- GLP compliance:
- no
- Key result
- H:
- 45.5 Pa m³/mol
- Temp.:
- 20 °C
- Conclusions:
- The Henry's law constant was calculated to be 45.5 Pa m3/mol at 20 °C indicating that the substance is moderately volatile from water.
Reference
Description of key information
The substance is expected to be moderately volatile. A Henry's Law constant of 45.5 Pa m³/mol at 20 °C was calculated according to ECHA Guidance R.16 (ECHA, 2016).
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 45.5
- at the temperature of:
- 20 °C
Additional information
The Henry's Law constant (HLC) was calculated according to ECHA Guidance R.16 (ECHA, 2016) using the molecular weight, water solubility and vapour pressure as input parameters. A HLC of 45.5 Pa m³/mol resulted indicating a potential to volatilize moderately from the water phase to the atmospheric compartment.
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