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Physical & Chemical properties

Vapour pressure

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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Remarks:
(The study was conducted according to the test guideline in effect at the time of study conduct)
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Remarks:
(The study was conducted according to the test guideline in effect at the time of study conduct)
GLP compliance:
yes
Type of method:
other: isothermal thermogravimetric effusion

Test material

Constituent 1
Chemical structure
Reference substance name:
3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl methacrylate
EC Number:
218-407-9
EC Name:
3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl methacrylate
Cas Number:
2144-53-8
Molecular formula:
C12H9F13O2
IUPAC Name:
3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl methacrylate
Details on test material:
- Purity: 99.7%

Results and discussion

Vapour pressureopen allclose all
Temp.:
25 °C
Vapour pressure:
8.6 Pa
Temp.:
20 °C
Vapour pressure:
4.2 Pa

Any other information on results incl. tables

The equation of the curve was: log PT,20 = -5322 x 1/T + 18.78 (r = 0.996, n = 8).

Results of the Isothermal TGA Analysis

Temperature [°C]

Weight loss [μg/min]

νT [g/cm2/h]

log νT

log PT

PT [Pa]

30

16.92

2.02E-03

-2.69

1.22

1.70E+01

15.47

1.85E-03

-2.73

1.18

1.50E+01

35

32.24

3.85E-03

-2.41

1.55

3.50E+01

31.25

3.73E-03

-2.43

1.53

3.40E+01

40

54.9

6.55E-03

-2.18

1.82

6.50E+01

52.21

6.23E-03

-2.21

1.79

6.20E+01

45

85.71

1.02E-02

-1.99

2.04

1.10E+02

83.71

9.99E-03

-2

2.03

1.10E+02

Vapour Pressures

Temperature [°C] log PT PT [Pa] PT [mm Hg]
20 0.63 4.2 0.032
25 0.93 8.6 0.064

Applicant's summary and conclusion

Conclusions:
4.2 Pa at 20 °C, 8.6 Pa at 25 °C
Executive summary:

The vapour pressures of the test substance at 20°C and 25°C were 4.2 Pa and 8.6 Pa, respectively, according to OECD Guideline 104 and the isothermal thermogravimetric effusion method.

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