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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:
2018-08-07 - 2018-10-09
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
23 Mar 2006
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
24 Aug 2009
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
static method
Key result
Temp.:
20 °C
Vapour pressure:
690 Pa
Temp.:
25 °C
Vapour pressure:
901 Pa
Conclusions:
From the measured values, the vapour pressure of the test item was calculated as 690 Pa at 20.0 °C and 901 Pa at 25 °C.
Executive summary:

The vapour pressure of the test item was measured using the static method as described according to OECD 104 resp. EU A.4 and under GLP conditions. Ten pairs temperature/vapour pressure were used to calculate a regression from which vapour pressure at ambient temperature could be estimated.

From the measured values, the vapour pressure of the test item was calculated as 690 Pa at 20.0 °C and 901 Pa at 25 °C. The values of the heating and cooling down phase showed good correspondence.

Therefore, the result of the study is considered valid.

Description of key information

The vapour pressure of the test item was measured using the static method as described according to OECD 104 resp. EU A.4 and under GLP conditions. Ten pairs temperature/vapour pressure were used to calculate a regression from which vapour pressure at ambient temperature could be estimated.

From the measured values, the vapour pressure of the test item was calculated as 690 Pa at 20.0 °C and 901 Pa at 25 °C. The values of the heating and cooling down phase showed good correspondence.

Therefore, the result of the study is considered valid.

Key value for chemical safety assessment

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

Additional information