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Physical & Chemical properties

Vapour pressure

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Reference
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:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Reason / purpose:
reference to same study
Qualifier:
according to
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

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.

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.

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.