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Vapour pressure

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vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2013-10-21 - 2013-10-23
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.4 (Vapour Pressure)
GLP compliance:
Type of method:
Specific details on test material used for the study:
- Name of test material (as cited in study report): Dimethyl Piperazine
- Substance type: Clear liquid
- Physical state: Liquid
- Lot/batch No.: 1903-3/2012
Key result
20 °C
Vapour pressure:
1 306 Pa
Remarks on result:
other: Mean of 2 runs

Run 1 was performed over a temperature range of 18.2 to 68.7°C. Run 2 was performed over a temperature range of 17.6 to 67.8°C. Vapour pressure curves were constructed (R²=0.9995 and 0.9991 for run 1 and run 2 respectively) and the vapour pressure at 20°C interpolated from the curves.

The vapour pressure of the substance has been reported as 1306 Pa at 20°C.

Description of key information

The vapour pressure of the test substance was determined in a GLP study according to test method EC A.4 to be 1306 Pa at 20 °C, following the isoteniscope method (Younis, 2013).

Key value for chemical safety assessment

Vapour pressure:
1 306 Pa
at the temperature of:
20 °C

Additional information