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Physical & Chemical properties

Vapour pressure

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vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011-07-07 - 2011-07-08
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.4 (Vapour Pressure)
GLP compliance:
yes (incl. QA statement)
Type of method:
static method
Specific details on test material used for the study:
No further details on the test item available
Key result
20 °C
Vapour pressure:
0.64 mBar
Remarks on result:
other: The result is the mean of 2 runs

Based on the vapour pressures measured, a vapour pressure curve was constructed (lnP vs 1/T; p in mbar and T in Kelvin). The temperature range was 39 °C -137 °C and 38 °C - 121 °C for run 1 and run 2, respectively. The vapour pressure at 20 °C was extrapolated from the vapour pressure curve to be 0.61 mbar (run 1) and 0.67 mbar (run 2).

The vapour pressure of the test substance was extrapolated from the vapour pressure curve to be 0.64 mbar 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 0.064 kPa at 20 °C, following the static technique (Younis, 2011).

Key value for chemical safety assessment

Vapour pressure:
0.064 kPa
at the temperature of:
20 °C

Additional information