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Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From April 11, 2006 to June 27, 2006
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: vapour pressure balance
Temp.:
113.6 °C
Vapour pressure:
0 Pa
Remarks on result:
other: Measured vapour pressure at the corresponding temperature
Temp.:
122.4 °C
Vapour pressure:
0.001 Pa
Remarks on result:
other: Measured vapour pressure at the corresponding temperature
Temp.:
130.3 °C
Vapour pressure:
0.001 Pa
Remarks on result:
other: Measured vapour pressure at the corresponding temperature
Temp.:
136 °C
Vapour pressure:
0.001 Pa
Remarks on result:
other: Measured vapour pressure at the corresponding temperature
Temp.:
139.9 °C
Vapour pressure:
0.002 Pa
Remarks on result:
other: Measured vapour pressure at the corresponding temperature
Temp.:
143.6 °C
Vapour pressure:
0.002 Pa
Remarks on result:
other: Measured vapour pressure at the corresponding temperature
Temp.:
144.2 °C
Vapour pressure:
0.003 Pa
Remarks on result:
other: Measured vapour pressure at the corresponding temperature
Temp.:
144.6 °C
Vapour pressure:
0.003 Pa
Remarks on result:
other: Measured vapour pressure at the corresponding temperature

The vapour pressure was measured in the temperature range of 13.5 °C to 145 °C. Above 113°C, a vapour pressure could be measured. The calculated vapour pressure values were extrapolated:

Temperature (°C)

Vapour pressure (hPa)

Vapour pressure (Pa)

20

1.6x10-9

1.6x10-7

25

2.8x10-9

2.8x10-7

50

3.3x10-8

3.3x10-6
Conclusions:
Under the conditions of the test, the calculated vapour pressure values for the test substance were 1.6x10-7, 2.8x10-7 and 3.3x10-6 Pa at 20, 25 and 50°C, respectively.
Executive summary:

A study was conducted to determine the vapour pressure of the test substance according to OECD Guideline 104 and EU Method A.4, in compliance with GLP. The determination of vapor pressure was carried out according to the effusion method (vapour pressure balance).

The vapour pressure was measured in the temperature range of 13.5°C to 145°C. Above 113°C, a vapour pressure could be measured.

Under the conditions of the test, the calculated vapour pressure values of the test substance were 1.6x10-7, 2.8x10-7 and 3.3x10-6 Pa at 20, 25 and 50°C, respectively.

Description of key information

The calculated vapour pressure values for the test substance were 1.6x10-7, 2.8x10-7 and 3.3x10-6 Pa at 20, 25 and 50°C, respectively (Smeykal, 2006).

Key value for chemical safety assessment

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

Additional information