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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:
2000
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Well detailed study report.
Qualifier:
equivalent or similar to
Guideline:
other: ASTM E1782
Principles of method if other than guideline:
To limit the influence of volatile impurities on the determination of the vapour pressure (as recommended in Guidance R7a, November 2012), DSC method was followed. Indeed, DSC will give a more relevant result than static method, since impurities more volatile that the main component to test, areevaporated. On top of that, DSC is a standard method for another endpoint (boiling point), and can be easily used to determine the vapour pressure.
GLP compliance:
not specified
Type of method:
other: vacuum Differential Scanning Calorimetry
Temp.:
40 °C
Vapour pressure:
0.14 mBar
Remarks on result:
other: extrapolated
Temp.:
50 °C
Vapour pressure:
0.37 mBar
Remarks on result:
other: extrapolated
Temp.:
60 °C
Vapour pressure:
0.92 mBar
Temp.:
70 °C
Vapour pressure:
2.03 mBar
Temp.:
80 °C
Vapour pressure:
4.16 mBar
Temp.:
90 °C
Vapour pressure:
7.92 mBar
Temp.:
100 °C
Vapour pressure:
14.2 mBar
Remarks on result:
other: extrapolated
Conclusions:
The vapour pressure of the substance is 0.14 mbar at 40°C.
Executive summary:

A well detailed study report is available. The vapour pressure of the substance was measured with vacuum DSC in the temperature range of 61°C - 83°C. The relationship between the vapour pressure and the temperature was then fitted with the Antoine model.

The vapour pressure of the test item was found to be 0.14 mbar at 40°C.

Description of key information

The vapour pressure of the substance is 0.14 mbar at 40°C.

Key value for chemical safety assessment

Vapour pressure:
0.14 hPa
at the temperature of:
40 °C

Additional information

A well detailed study report is available. The vapour pressure of the substance was measured with vacuum DSC in the temperature range of 61°C - 83°C. The relationship between the vapour pressure and the temperature was then fitted with the Antoine model.

The vapour pressure of the test item was found to be 0.14 mbar at 40°C.