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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:
31 January 2017 to 1 February 2017.
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:
static method
Key result
Test no.:
#1
Temp.:
20 °C
Vapour pressure:
13.41 hPa
Key result
Test no.:
#2
Temp.:
25 °C
Vapour pressure:
19.3 hPa
Key result
Transition / decomposition:
no
Conclusions:
The vapor pressure of the test item determined by the static method was 13.41 hPa at 20ºC and 19.30 hPa at 25 ºC.
Executive summary:

A study to determine the vapor pressure of the test item was conducted according to OECD guideline 104 and EC method A.4 under GLP conditions. The vapour pressure of the test item determined by the static method was 13.41 hPa at 20ºC and 19.30 hPa at 25 ºC.       

Description of key information

Key study: Test method according to OECD 104 and EEC A.4. GLP study. The vapour pressure was 13.42 hPa at 20ºC and 19.30 hPa at 25 ºC.

Key value for chemical safety assessment

Vapour pressure:
13.41 hPa
at the temperature of:
20 °C

Additional information

The static method (OECD 104) was conducted as this is the most suitable method for multicomponent liquids.
However, care is needed when interpreting the results since the substance is a complex mixture (UVCB substance); small amounts of volatile components may increase the vapour pressure by several orders of magnitude.

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