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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:
25 July 2008 to 07 November 2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.
Reference:
Composition 0
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
effusion method: vapour pressure balance
Test material information:
Composition 1
Temp.:
25 °C
Vapour pressure:
0 kPa
Remarks on result:
other: A mean of 5 runs

Table 1: Summary of Vapour Pressure Results

Run

Log(10) [Vp(25 °C)]

1

-7.292

2

-7.502

3

-7.159

4

-7.482

5

-7.603

Mean

-7.408

Vapour Pressure

3.9 x 10^-8

Throughout testing, the test material did not change in appearance under the conditions used in the determinations.

Based on measurements and extrapolation, the vapour pressure of the test material at 25 °C was found to be 3.9 x 10^-8 Pa.

Conclusions:
Under the conditions of the study, the vapour pressure of the test material at 25 °C was found to be 3.9 x 10^-8 Pa.
Executive summary:

The vapour pressure of the test material was investigated in a study which was conducted under GLP conditions and in accordance with the standardised guideline EU Method A.4.

A total of 5 runs were performed in the test and the vapour pressure value is a mean of these values, based upon measurements and extrapolation.

Under the conditions of the study, the vapour pressure of the test material at 25 °C is 3.9 x 10^-08 Pa.

Description of key information

Vapour Pressure = 3.9 x 10^-8 Pa (25 °C), EU Method A.4, Atwal & Woolley (2008)

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information

The vapour pressure of the test material was investigated in a study which was conducted under GLP conditions and in accordance with the standardised guideline EU Method A.4. The study was assigned a reliability score of 1 in line with the principles for assessing data quality as defined by Klimisch (1997).

A total of 5 runs were performed in the test and the vapour pressure value is a mean of these values, based upon measurements and extrapolation.

Under the conditions of the study, the vapour pressure of the test material at 25 °C is 3.9 x 10^-08 Pa.