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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:
16 August 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
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:
2.92 hPa
Key result
Temp.:
25 °C
Vapour pressure:
4.58 hPa

Vapour pressure of the test item at 20ºC and 25ºC was calculated on the basis of equation log (p) = f (1/ t) = a-b/(t+273.15) where: p – vapour pressure in Pa, t – temperature in ºC, obtained for four measurement points: 30ºC, 35ºC, 40ºC and 45ºC.

Table 1. Summary of vapour pressure determination results.

Vapour pressure at 20ºC

Vapour pressure at 25ºC

2.92 hPa

4.58 hPa

 

Conclusions:
The vapour pressure of the test substance was determined to be 2.92 hPa at 20ºC and 4.58 hPa at 25 ºC.
Executive summary:

The vapour pressure of the test substance was determined according to OECD 104/ EU Method A.4, under GLP conditions.The vapour pressure of the test item using static method was determined to be 2.92 hPa at 20ºC and 4.58 hPa at 25 ºC.

Description of key information

Key study. Method according to OECD 104/ EU Method A.4, GLP study. The vapour pressure of the test item at 20ºC is 2.92 hPa, and the vapour pressure of the test item at 25ºC is 4.58 hPa.

Key value for chemical safety assessment

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

Additional information

Key study: The vapour pressure of the test substance was determined according to OECD 104/ EU Method A.4, under GLP conditions. The vapour pressure of test substance using static method was determined to be 2.92 hPa at 20ºC and 4.58 hPa at 25 ºC.