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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
Study period:
Testing conducted betweeen 8 July 2008 and 22 August 2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP and in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not effect the quality of the relevant results.
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
other: Vapour pressure balance
Temp.:
25 °C
Vapour pressure:
0 Pa
Transition / decomposition:
no

A plot of Log10 (vapour pressure (Pa)) versus reciprocal temperature (1/T(K)) for 5 runs gave a summary statistical data as seen below using an unweighted least squares treatment.

Run

Log10 [Vp(25ºC)]

1

-4.637

2

-4.749

3

-4.701

4

-4.715

5

-4.964

Mean

-4.753

Vapour Pressure

1.8 x 10-5 Pa

Conclusions:
The vapour pressure of the test material has been determined to be 1.8 x 10-5 Pa at 25ºC
Executive summary:

The vapour pressure was determined using a vapour pressure balance with measurements being made at several temperatures and linear regression analysis used to calculate the vapour pressure at 25°C. Testing was conducted using Method A4 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC).

The vapour pressure of the test material has been determined to be 1.8 x 10-5 Pa at 25ºC

Description of key information

The vapour pressure was determined using a vapour pressure balance with measurements being made at several temperatures and linear regression analysis used to calculate the vapour pressure at 25°C. Testing was conducted using Method A4 of Commission Directive 92/69/EEC.

The vapour pressure of the test material has been determined to be 1.8 x 10-5 Pa at 25ºC

Key value for chemical safety assessment

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

Additional information