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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:
08 February 2010 to 12 April 2010
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:
effusion method: by loss of weight or by trapping vaporisate
Key result
Temp.:
20 °C
Vapour pressure:
11.1 Pa
Key result
Temp.:
20 °C
Vapour pressure:
0.083 mm Hg

Table 1: Results of isothermal TGA analysis

Temperature (°C)

Weight loss (µg/min)

VT(g/cm2/h)

logvT

30

14.81

1.77 x 10-3

-2.75

14.91

1.78 x 10-3

-2.75

40

43.07

5.14 x 10-3

-2.29

44.25

5.28 x 10-3

-2.28

50

99.71

1.19 x 10-3

-1.92

103.2

1.23 x 10-3

-1.91

60

204.0

2.44 x 10-3

-1.61

216.2

2.58 x 10-3

-1.59

 

Conclusions:
Under the conditions of this study, the vapour pressure of the test material at 20 °C determined by thermogravimetric effusion method was 11.1 Pa (8.33 x 10^-2 mm Hg).
Executive summary:

The vapour pressure of the test material determined in a GLP, guideline study (OECD 104 and EU method A4) using an isothermal thermogravimetric effusion method at 20 °C was found to be 11.1 Pa (8.33 x 10 -2 mm Hg).

Description of key information

Under the conditions of this study, the vapour pressure of the test material at 20 °C was found to be 11.1 Pa (8.33 x 10 -2 mm Hg).

Key value for chemical safety assessment

Vapour pressure:
11.1 Pa
at the temperature of:
20 °C

Additional information

The vapour pressure of the test material determined in a GLP, guideline study (OECD 104 and EU method A4) using an isothermal thermogravimetric effusion method at 20 °C was found to be 11.1 Pa (8.33 x 10 -2 mm Hg).