2,2,2-trifluoro-1-(trifluoromethyl)ethyl methacrylate

Vapour pressure

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 guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Deviations:

no

Test guideline 2

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

Test material information

Constituent 1

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 pressure

Vapour pressure 1

Key result

Test no.:

#1

Temp.:

20 °C

Vapour pressure:

5 000 Pa

Vapour pressure 2

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 P_Tof the test item as function of the reciprocal temperatures is shown in Figure 4. The equation of the curve was:
log P_T= -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´10^4	4.29
	1.92´10^4	4.28
55	2.38´10^4	4.38
	2.37´10^4	4.37
60	2.89´10^4	4.46
	2.88´10^4	4.46
65	3.51´10^4	4.55
	3.48´10^4	4.54
70	4.21´10^4	4.62
	4.17´10^4	4.62
75	5.02´10^4	4.70
	4.99´10^4	4.70
80	5.98´10^4	4.78
	5.93´10^4	4.77
85	7.09´10^4	4.85
	7.01´10^4	4.85
90	8.34´10^4	4.92
	8.25´10^4	4.92
95	9.79´10^4	4.99
	9.69´10^4	4.99
100	1.14´10^5	5.06
	1.13´10^5	5.05

 

Table 4          Vapour Pressure of the Test Item

Temperature [°C]	logPT	PT [Pa]	PT [mm Hg]
20	3.70	5.0 x 10^3	38
25	3.81	6.4 x 10^3	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.