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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
effusion method: Knudsen cell
Specific details on test material used for the study:
TREATMENT OF TEST MATERIAL PRIOR TO TESTING
The test item was tested as received. No further preliminary treatment such as drying or milling was performed. The results given in this report only apply to the tested sample.
Key result
Temp.:
20 °C
Vapour pressure:
0.001 Pa
Remarks on result:
other: extrapolated from the experimental data
Key result
Temp.:
25 °C
Vapour pressure:
0.003 Pa
Remarks on result:
other: extrapolated from the experimental data
Key result
Temp.:
50 °C
Vapour pressure:
0.057 Pa
Remarks on result:
other: extrapolated from the experimental data
Conclusions:
Vapour pressure = 0.0013 Pa at 20°C, 0.0026 Pa at 25°C and 0.057 Pa at 50°C. The GLP study was performed according to OECD TG104 and EU Method A.4 without deviations and therefore reliability of Klimisch 1 has been assigned.
Executive summary:

The vapour pressure of the test substance was determined in a GLP study according to OECD 104 and EU Method A.4 using the effusion method: vapour pressure balance. Vapour pressure was measured in the temperature range of 70 °C to 120 °C and values for 20, 25 and 50 °C were extrapolated from this experimental data:

T / °C   p / hPa
 20  1.3 x 10E-04
 25  2.6 x 10E-04
 50  5.7 x 10E-03

Description of key information

Vapour pressure = 1.3 x 10E-04 hPa at 20°C, 2.6 x 10E-04 hPa at 25°C and 5.7 x 10E-03 hPa at 50°C [exp. result, GLP, OECD 104 & EU A.4, effusion method: vapour pressure balance, 2016]

Key value for chemical safety assessment

Vapour pressure:
0 hPa
at the temperature of:
20 °C

Additional information