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EC number: 200-866-1 | CAS number: 75-37-6
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:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Remarks:
- Internationally accepted calculation method, EPI-Suite EPA (USA)
- Principles of method if other than guideline:
- Calculation by EPI-Suite HENRYWIN v3.20.
- GLP compliance:
- no
- Conclusions:
- Based on an estimated Henry's Law constant of 0.02 atm·m3/mole (2060 Pa·m3/mole) (EPI-Suite, HENRYWIN v3.20), 1,1 -difluoroethane is expected to volatilize rapidly from water surfaces.
- Executive summary:
The estimated Henry's Law constant using EPI-Suite, HENRYWIN v3.20 is 0.02 atm·m3/mole (2060 Pa·m3/mole). On the basis of this value, 1,1-difluoroethane is expected to volatilize rapidly from water surfaces.
Reference
Henrys Law Constant at 25 ºC (EPI-Suite, HENRYWIN v3.20):
Bond Method : 0,387 atm·m3/mole (39200 Pa·m3/mole)
Group Method: 0.0203 atm·m3/mole (2060 Pa·m3/mole)
Exper Database: 0.0203 atm·m3/mole (2060 Pa·m3/mole)
Description of key information
Based on the estimated data using EPI-Suite (HENRYWIN v3.20), the estimated Henry's Law constant is 0.02 atm-m3/mole.
Key value for chemical safety assessment
- Henry's law constant (H) (in Pa m³/mol):
- 2 060
- at the temperature of:
- 25 °C
Additional information
Based on an estimated Henry's Law constant of 0.02 atm·m3/mole (2060 Pa·m3/mole) (EPI-Suite, HENRYWIN v3.20), 1,1 -difluoroethane is expected to volatilize rapidly from water surfaces.
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