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EC number: 262-104-4 | CAS number: 60207-90-1
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
- Qualifier:
- no guideline required
- Principles of method if other than guideline:
- Calculation
- GLP compliance:
- no
- Remarks:
- Not applicable
- Key result
- H:
- 0 Pa m³/mol
- Temp.:
- 20 °C
- Conclusions:
- Based on the water solubility and vapour pressure of the test substance at 20°C, the Henry's law constant was calculated to be: 9.2E-05 Pa m3 / mol
- Executive summary:
Henry's law constant, H, is calculated from the following equation: H = Pvp/Sw [Pa * m3/mol]
Where:
Pvp= vapour pressure [Pa],
Sw = watersolubility [mol/m3].
This equation is the method of choice when reliably measured values of Pvp and SW are available, which is the case for the test substance (mol. weight = 342.2 g/mol). Water solubility at 20°C = 100 g/m3 and vapour pressure at 20°C = 2.7E-05 Pa. Based on these results Henry's law constant was calculated to be: 9.2E-05 Pa * m3/mol.
Reference
Description of key information
The Henry’s law constant is calculated to be 9.2E-05 Pa * m3/mol.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 0
- at the temperature of:
- 20 °C
Additional information
There is a calculation available for this endpoint that is included as the key study. The equation ‘H = Vapor pressure/Solubility’ was used. Henry’s law constant at 20° C was calculated to be: 9.2E-05 Pa*m3/mol.
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