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EC number: 249-528-5 | CAS number: 29232-93-7
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
- Reason / purpose for cross-reference:
- reference to other study
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- no guideline followed
- GLP compliance:
- no
- Key result
- H:
- 0.06 Pa m³/mol
- Temp.:
- 20 °C
- Conclusions:
- Henry's law constant has been calculated as 6E-02 Pa m3 per mol in purified water and in water buffered at pH 5, pH 7 and pH 9.
- Executive summary:
Vapour pressure and water solubility values, both at measured at 20 °C,have been used to determine the Henry's law constant of the test substance. The Henry's law constant was established at 6E-02 Pa m3 per mol (6E-07 atm m3 per mol) in purified water and in water buffered at pH 5, pH 7 and pH 9.
Reference
Table 1. Henry's Law Constant Calculation
Water solubility [pH] |
Vapor pressure |
H [1 sig fig] |
|||
mg/L |
Mol/m3a |
Pa |
atm |
Pa m3 per mol |
atm m3 per mol |
10 [purified] |
3.3E-02 |
2.0E-03 |
2.0E-08 |
6E-02 |
6E-07 |
11 [pH 5] |
3.6E-02 |
2.0E-03 |
2.0E-08 |
6E-02 |
6E-07 |
10 [pH 7] |
3.3E-02 |
2.0E-03 |
2.0E-08 |
6E-02 |
6E-07 |
9.7 [pH 9] |
3.2E-02 |
2.0E-03 |
2.0E-08 |
6E-02 |
6E-07 |
Description of key information
The Henry's law constant was calculated to be 0.06 Pa m3/mol at 20 °C, Husband 1997
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 0.06
- at the temperature of:
- 20 °C
Additional information
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