Registration Dossier
Registration Dossier
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EC number: 245-366-4 | CAS number: 22984-54-9
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- September 27, 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
- Remarks:
- (Knudsen cell)
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.07 Pa
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.142 Pa
- Conclusions:
- The vapor pressure of the test substance was determined to be 0.07 Pa at 20 ºC and 0.142 Pa at 25 ºC.
- Executive summary:
The study of vapour pressure using effusion method was performed in accordance with EU Method A.4 and OECD Guidance 104. GLP study. The vapor pressure of the test substance was determined to be 0.07 Pa at 20 ºC and 0.142 Pa at 25 ºC.
Reference
Vapour pressure of the test substance at 20 °C and 25 °C was calculated on the basis of equation log (P) = f (1/t) = a-b/(t+273.15) where P – vapour pressure in Pa, t – temperature in °C, obtained for four measurement points: 28.10 °C, 31.50 °C, 36.90 °C and 41.80 °C.
Description of key information
Key study: EU method A.4 and OECD Guidance 104. GLP study. The vapor pressure of the test substance was determined to be 0.07 Pa at 20 ºC and 0.142 Pa at 25 ºC.
Key value for chemical safety assessment
- Vapour pressure:
- 0.142 Pa
- at the temperature of:
- 25 °C
Additional information
Supporting: The estimated vapour pressure at 25 ºC was 0.0546 Pa (EPI-Suite, MPBPWIN v1.43)
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