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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
8 September 2017 to 22 November 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
static method
Key result
Temp.:
20 °C
Vapour pressure:
2 Pa
Remarks on result:
other: Mean of runs 1 and 2

Table 1: Full Test Results

Temperature (°C)

Temperature (K)

Pressure (mbar)

Calculated Pressure (Pa)

Run 1

*20

293.15

0.02

2

20.0

293.15

0.0305

3.05

30.6

303.75

0.045

4.5

39.9

313.05

0.1324

13.24

50.2

323.35

0.5472

54.72

Run 2

*20

293.15

0.02

2

20.0

293.15

0.0193

1.93

30.0

303.15

0.0502

5.02

39.1

312.25

0.1182

11.82

50.0

323.15

0.5167

51.67

60.0

333.15

1.5

150

*= Determined by extrapolation

- Run 1: The sample (11.7 g) was degassed for 65 hours prior to testing. The starting vacuum was 0.0011 mbar.

- Run 2: The sample (13.3 g) was degassed for 18 hours prior to testing. The starting vacuum was 0.0011 mbar.

Conclusions:
Under the conditions of the study the vapour pressure of the test material was 2 Pa at 20°C.
Executive summary:

The vapour pressure of the test material was investigated in accordance with the standardised guideline EU Method A.4, under GLP conditions.

The static test method was performed using two runs, in the first run the sample was degassed for 65 hours prior to testing and in the second run the sample was degassed for 18 hours prior to testing.

Under the conditions of the study the vapour pressure of the test material was 2 Pa at 20°C.

Description of key information

Under the conditions of the study the vapour pressure of the test material was 2 Pa at 20°C.

Key value for chemical safety assessment

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

Additional information

The vapour pressure of the test material was investigated in accordance with the standardised guideline EU Method A.4, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The static test method was performed using two runs, in the first run the sample was degassed for 65 hours prior to testing and in the second run the sample was degassed for 18 hours prior to testing.

Under the conditions of the study the vapour pressure of the test material was 2 Pa at 20°C.