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EC number: 211-941-3 | CAS number: 717-74-8
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:
- May 12 to July 20, 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006
- GLP compliance:
- no
- Type of method:
- effusion method: Knudsen cell
- Specific details on test material used for the study:
- - test substance purity: >93%
-Test material form: liquid, colorless at room temperature - Temp.:
- 20 °C
- Vapour pressure:
- 0.45 Pa
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.91 Pa
- Conclusions:
- The vapour pressure was calculated to be 0.45 Pa at 20 °C and 0.91 Pa at 25 °C.
- Executive summary:
The vapour pressure was calculated to be 0.45 Pa at 20 °C and 0.91 Pa at 25 °C.
Reference
Based on the Arrhenius plot, the equation of best-fit line was determined. From this equation, a value of the vapour pressure of the Test Item at 20 and 25 °C, and the Heat of Vaporization (slope of the log P vs 1/T plot divided by 2.3R) were calculated. The vapour pressure was calculated to be 0.45 Pa at 20 °C and 0.91 Pa at 25 °C.
Description of key information
The vapour pressure was calculated to be 0.45 Pa at 20 °C and 0.91 Pa at 25 °C.
Key value for chemical safety assessment
- Vapour pressure:
- 0.91 Pa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure was determined in a non-GLP study according to OECD 104 (Knudson and Isothermal Effusion method). The vapour pressure was calculated to be 0.45 Pa at 20 °C and 0.91 Pa at 25 °C.
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