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Administrative data

Endpoint:
vapour pressure
Data waiving:
other justification
Justification for data waiving:
other:

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018

Materials and methods

Test guidelineopen allclose all
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

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2,2-trifluoro-1-(trifluoromethyl)ethyl methacrylate
EC Number:
221-309-9
EC Name:
2,2,2-trifluoro-1-(trifluoromethyl)ethyl methacrylate
Cas Number:
3063-94-3
Molecular formula:
C7H6F6O2
IUPAC Name:
2,2,2-trifluoro-1-(trifluoromethyl)ethyl methacrylate
Test material form:
liquid
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 449935-248
- Expiration date of the lot/batch: 30 March 2018
- Purity test date: Not specified


STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: In refrigerator (2-8°C)
- Stability under test conditions: Stable

Results and discussion

Vapour pressureopen allclose all
Key result
Test no.:
#1
Temp.:
20 °C
Vapour pressure:
5 000 Pa
Key result
Test no.:
#2
Temp.:
25 °C
Vapour pressure:
6 400 Pa

Any other information on results incl. tables

The results of the static method for the test item are given in Table 3.

The vapour pressure regression curve of the log PTof the test item as function of the reciprocal temperatures is shown in Figure 4. The equation of the curve was:
log PT= -1855´1/T + 10.03 (r = 0.99996, n = 22).

The results of the vapour pressure for the test item at 20°C and 25°Care given in Table 4.

Table 3          Results of theVapour Pressure Static Method

Temperature
[°C]

PT
[Pa]

logPT

50

1.93´104

4.29

 

1.92´104

4.28

55

2.38´104

4.38

 

2.37´104

4.37

60

2.89´104

4.46

 

2.88´104

4.46

65

3.51´104

4.55

 

3.48´104

4.54

70

4.21´104

4.62

 

4.17´104

4.62

75

5.02´104

4.70

 

4.99´104

4.70

80

5.98´104

4.78

 

5.93´104

4.77

85

7.09´104

4.85

 

7.01´104

4.85

90

8.34´104

4.92

 

8.25´104

4.92

95

9.79´104

4.99

 

9.69´104

4.99

100

1.14´105

5.06

 

1.13´105

5.05

 

Table 4          Vapour Pressure of the Test Item

Temperature
[°C]

logPT

PT
[Pa]

PT
[mm Hg]

20

3.70

5.0 x 103

38

25

3.81

6.4 x 103

48

      

Applicant's summary and conclusion

Conclusions:
The static method was applied for the determination of the vapour pressure of 2,2,2-trifluoro-1-(trifluoromethyl)ethyl methacrylate.
The vapour pressure of the test item at 20°C (293K) and 25°C (298K) was 5000 Pa (38 mm Hg) and 6400 Pa (48 mm Hg) respectively.