Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
March 2006
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
August 2009
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: Knudsen cell

Test material

Constituent 1
Chemical structure
Reference substance name:
vegetable oil mono- and polyunsaturated C16-C22 triglycerides
Molecular formula:
C51H92O6 to C69H128O6
IUPAC Name:
vegetable oil mono- and polyunsaturated C16-C22 triglycerides
Constituent 2
Chemical structure
Reference substance name:
dimers of vegetable oil mono- and polyunsaturated C16-C22 triglycerides
Molecular formula:
C102H186O12 to C138H256O12
IUPAC Name:
dimers of vegetable oil mono- and polyunsaturated C16-C22 triglycerides
Constituent 3
Chemical structure
Reference substance name:
trimers of vegetable oil mono- and polyunsaturated C16-C22 triglycerides
Molecular formula:
C153H280O18 to C207H388O18
IUPAC Name:
trimers of vegetable oil mono- and polyunsaturated C16-C22 triglycerides
Constituent 4
Chemical structure
Reference substance name:
tetramers and higher oligomers of vegetable oil mono- and polyunsaturated C16-C22
Molecular formula:
C204H374O24 and higher oligomers
IUPAC Name:
tetramers and higher oligomers of vegetable oil mono- and polyunsaturated C16-C22
Test material form:
liquid: viscous

Results and discussion

Vapour pressure
Key result
Remarks on result:
not determinable
Remarks:
no reproducible weight loss

Any other information on results incl. tables

Experiment 1

Experiment

1

 

 

 

 

 

 

 

 

Real Temperature in K

303.2

 

 

 

 

 

 

 

 

Real Temperature in °C

30.0

 

 

 

 

 

 

 

 

Date of Measurement

22.05.2019 10:48

23.05.2019 10:45

24.05.2019 10:20

Elapsed Time in s

85440

83100

82500

Parameter

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Unit

g

yes/no

Pa

g

yes/no

Pa

g

yes/no

Pa

Knudsen-cell 1

-0.00043

no

 

0.00019

yes

2.45E-04

0.00008

yes

1.04E-04

Knudsen-cell 2

0.00294

yes

3.69E-03

-0.00002

no

 

0.00002

yes

2.60E-05

Knudsen-cell 3

-0.00016

no

 

0.00029

yes

3.74E-04

0.00028

yes

3.64E-04

Knudsen-cell 4

-0.00008

no

 

-0.00003

no

 

-0.00002

no

 

Mean

 

yes

3.69E-03

 

yes

3.10E-04

 

yes

1.65E-04

Standard deviation:

 

 

n.a.

 

 

9.13E-05

 

 

1.77E-04

Mean of measured values:

 

1.389E-03

 

 

 

 

 

 

Standard deviation:

 

1.996E-03

RSD:

143.7%[K2] [FK3] 

 

 

 

 

Experiment 2

Experiment

2

 

 

 

 

 

 

 

 

Real Temperature in K

318.2

 

 

 

 

 

 

 

 

Real Temperature in °C

45.0

 

 

 

 

 

 

 

 

Date of Measurement

28.05.2019 12:43

29.05.2019 11:05

04.06.2019 11:20

Elapsed Time in s

93360

78300

84600

Parameter

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Unit

g

yes/no

Pa

g

yes/no

Pa

g

yes/no

Pa

Knudsen-cell 1

-0.00003

no

 

-0.00002

no

 

0.00001

yes

1.30E-05

Knudsen-cell 2

-0.00002

no

 

0.00002

yes

2.81E-05

0.00008

yes

1.04E-04

Knudsen-cell 3

0.00005

yes

5.89E-05

-0.00001

no

 

0.00001

yes

1.30E-05

Knudsen-cell 4

-0.00001

no

 

-0.00002

no

 

-0.00002

no

 

Mean

 

yes

5.89E-05

 

yes

2.81E-05

 

yes

4.33E-05

Standard deviation:

 

 

n.a.

 

 

n.a.

 

 

5.25E-05

Mean of measured values:

 

4.341E-05

 

 

 

 

 

 

Standard deviation:

 

1.539E-05

RSD:

35.5%

 

 

 

 

Experiment 3

Experiment

3

 

 

 

 

 

 

 

 

Real Temperature in K

333.2

 

 

 

 

 

 

 

 

Real Temperature in °C

60.0

 

 

 

 

 

 

 

 

Date of Measurement

05.06.2019 10:45

06.06.2019 10:50

07.06.2019 09:00

Elapsed Time in s

82200

84900

77400

Parameter

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Unit

g

yes/no

Pa

g

yes/no

Pa

g

yes/no

Pa

Knudsen-cell 1

-0.00001

no

 

0.00002

yes

2.65E-05

-0.00002

no

 

Knudsen-cell 2

-0.00001

no

 

0.00001

yes

1.32E-05

0.00002

yes

2.91E-05

Knudsen-cell 3

0.00002

yes

2.74E-05

-0.00002

no

 

-0.00002

no

 

Knudsen-cell 4

-0.00003

no

 

0.00002

yes

2.65E-05

0.00004

yes

5.81E-05

Mean

 

yes

2.74E-05

 

yes

2.21E-05

 

yes

4.36E-05

Standard deviation:

 

 

n.a.

 

 

7.65E-06

 

 

2.05E-05

Mean of measured values:

 

3.101E-05

 

 

 

 

 

 

Standard deviation:

 

1.121E-05

RSD:

36.2%

 

 

 

 

Experiment 4

Experiment

4

 

 

 

 

 

 

 

 

Real Temperature in K

348.2

 

 

 

 

 

 

 

 

Real Temperature in °C

75.0

 

 

 

 

 

 

 

 

Date of Measurement

12.06.2019 11:15

13.06.2019 11:15

14.06.2019 11:15

Elapsed Time in s

85200

84600

84900

Parameter

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Unit

g

yes/no

Pa

g

yes/no

Pa

g

yes/no

Pa

Knudsen-cell 1

-0.00002

no

-2.70E-05

-0.00002

no

 

-0.00001

no

 

Knudsen-cell 2

-0.00001

no

-1.35E-05

0.00064

yes

8.70E-04

0.00180

yes

2.44E-03

Knudsen-cell 3

-0.00001

no

-1.35E-05

-0.00003

no

 

0.00022

yes

2.98E-04

Knudsen-cell 4

-0.00002

no

-2.70E-05

-0.00001

no

 

0.00002

yes

2.71E-05

Mean

 

no

 

 

yes

8.70E-04

 

yes

9.21E-04

Standard deviation:

 

 

 

 

 

n.a.

 

 

1.32E-03

Mean of measured values:

 

8.953E-04

 

 

 

 

 

 

Standard deviation:

 

3.613E-05

RSD:

4.0%

 

 

 

 

Experiment 5

Experiment

5

 

 

 

 

 

 

 

 

Real Temperature in K

363.2

 

 

 

 

 

 

 

 

Real Temperature in °C

90.0

 

 

 

 

 

 

 

 

Date of Measurement

18.06.2019 11:00

19.06.2019 10:20

25.06.2019 11:45

Elapsed Time in s

84600

82800

87900

Parameter

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Unit

g

yes/no

Pa

g

yes/no

Pa

g

yes/no

Pa

Knudsen-cell 1

0.00083

yes

1.15E-03

0.00078

yes

1.11E-03

-0.00006

no

 

Knudsen-cell 2

0.00219

yes

3.04E-03

0.00101

yes

1.43E-03

-0.00005

no

 

Knudsen-cell 3

0.00285

yes

3.96E-03

0.00179

yes

2.54E-03

0.00002

yes

2.67E-05

Knudsen-cell 4

-0.00008

no

 

0.00110

yes

1.56E-03

-0.00001

no

 

Mean

 

yes

2.72E-03

 

yes

1.66E-03

 

yes

2.67E-05

Standard deviation:

 

 

1.43E-03

 

 

6.17E-04

 

 

n.a.

Mean of measured values:

 

1.467E-03

 

 

 

 

 

 

Standard deviation:

 

1.355E-03

RSD:

92.3%

 

 

 

 

Experiment 6

Experiment

6

 

 

 

 

 

 

 

 

Real Temperature in K

378.2

 

 

 

 

 

 

 

 

Real Temperature in °C

105.0

 

 

 

 

 

 

 

 

Date of Measurement

26.06.2019 10:25

27.06.2019 10:30

28.06.2019 09:30

Elapsed Time in s

78300

84300

80100

Parameter

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Unit

g

yes/no

Pa

g

yes/no

Pa

g

yes/no

Pa

Knudsen-cell 1

0.00127

yes

1.94E-03

-0.00001

no

 

0.00003

yes

4.49E-05

Knudsen-cell 2

0.00203

yes

3.11E-03

-0.00003

no

 

0.00051

yes

7.63E-04

Knudsen-cell 3

0.00222

yes

3.40E-03

0.00002

yes

2.84E-05

-0.00039

no

 

Knudsen-cell 4

0.00234

yes

3.58E-03

0.00001

yes

1.42E-05

-0.00006

no

 

Mean

 

yes

3.01E-03

 

yes

2.13E-05

 

yes

4.04E-04

Standard deviation:

 

 

7.35E-04

 

 

1.01E-05

 

 

5.08E-04

Mean of measured values:

 

1.144E-03

 

 

 

 

 

 

Standard deviation:

 

1.625E-03

RSD:

142.0%

 

 

 

 

Experiment 7

Experiment

7

 

 

 

 

 

 

 

 

Real Temperature in K

393.2

 

 

 

 

 

 

 

 

Real Temperature in °C

120.0

 

 

 

 

 

 

 

 

Date of Measurement

03.07.2019 13:10

04.07.2019 12:45

05.07.2019 10:40

Elapsed Time in s

86100

82500

77100

Parameter

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Unit

g

yes/no

Pa

g

yes/no

Pa

g

yes/no

Pa

Knudsen-cell 1

0.00044

yes

6.24E-04

0.00121

yes

1.79E-03

-0.00004

no

 

Knudsen-cell 2

0.00036

yes

5.11E-04

0.00272

yes

4.03E-03

-0.00001

no

 

Knudsen-cell 3

0.04812

no

 *

0.00642

yes

9.51E-03

-0.00001

no

 

Knudsen-cell 4

-0.00289

no

 

0.00553

yes

8.19E-03

0.00001

yes

1.58E-05

Mean

 

yes

5.68E-04

 

yes

5.88E-03

 

yes

1.58E-05

Standard deviation:

 

 

8.03E-05

 

 

3.59E-03

 

 

n.a.

Mean of measured values:

 

2.154E-03

 

 

 

 

 

 

Standard deviation:

 

3.238E-03

RSD:

150.3%

 

 

 

 

Experiment 8

Experiment

8

 

 

 

 

 

 

 

 

Real Temperature in K

408.2

 

 

 

 

 

 

 

 

Real Temperature in °C

135.0

 

 

 

 

 

 

 

 

Date of Measurement

06.07.2019 09:40

07.07.2019 10:15

08.07.2019 13:15

Elapsed Time in s

81000

87300

95100

Parameter

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Unit

g

yes/no

Pa

g

yes/no

Pa

g

yes/no

Pa

Knudsen-cell 1

-0.00002

no

 

0.00023

yes

3.28E-04

-0.00003

no

 

Knudsen-cell 2

-0.00003

no

 

0.00002

yes

2.85E-05

-0.00002 

no

 

Knudsen-cell 3

-0.00003

no

 

0.00453

yes

6.46E-03

0.00002

yes

2.62E-05

Knudsen-cell 4

0.00002

yes

3.07E-05

-0.00003

no

 

0.00001

yes

1.31E-05

Mean

 

yes

3.07E-05

 

yes

2.27E-03

 

yes

1.96E-05

Standard deviation:

 

 

n.a.

 

 

3.63E-03

 

 

9.26E-06

Mean of measured values:

 

7.741E-04

 

 

 

 

 

 

Standard deviation:

 

1.297E-03

RSD:

167.6%

 

 

 

 

Experiment 9

Experiment

9

 

 

 

 

 

 

 

 

Real Temperature in K

423.2

 

 

 

 

 

 

 

 

Real Temperature in °C

150.0

 

 

 

 

 

 

 

 

Date of Measurement

09.07.2019 13:00

10.07.2019 13:20

11.07.2019 13:15

Elapsed Time in s

83400

85500

84000

Parameter

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Weight loss

to be used

Vapour pressure

Unit

g

yes/no

Pa

g

yes/no

Pa

g

yes/no

Pa

Knudsen-cell 1

0.00087

yes

1.32E-03

0.00003

yes

4.45E-05

0.00002

yes

3.02E-05

Knudsen-cell 2

0.00128

yes

1.95E-03

-0.00003

no

 

0.00002

yes

3.02E-05

Knudsen-cell 3

0.00334

yes

5.08E-03

-0.00001

no

 

-0.00001

no

 

Knudsen-cell 4

-0.00001

no

 

0.00001

yes

1.48E-05

-0.00001

no

 

Mean

 

yes

2.78E-03

 

yes

2.96E-05

 

yes

3.02E-05

Standard deviation:

 

 

2.01E-03

 

 

2.10E-05

 

 

0.00E+00

Mean of measured values:

 

9.470E-04

 

 

 

 

 

 

Standard deviation:

 

1.588E-03

RSD:

167.7%

 

 

 

 

The vapour pressure of Oligomerisation product obtained by plasma treatment of vegetable oil mono- and polyunsaturated C16-C22 triglycerides was determined according to OECD 104 resp. EU A.4 using the effusion method (weight loss).

Vapour pressure was examined at nine different temperatures. No temperatures could be evaluated as they showed no reproducible weight loss (RSD above 30% at each temperature step).

Therefore, a calculation on base of the measured weight losses is not possible, and no vapour pressure could be stated.

Applicant's summary and conclusion

Executive summary:

The vapour pressure of the test item "Oligomerisation product obtained by plasma treatment of vegetable oil mono- and polyunsaturated C16-C22 triglycerides" was determined at nine different temperatures (30, 45, 60, 75, 90, 105, 120, 135 and 150 °C) according to OECD 104 resp. EU A.4 using the effusion method (weight loss). All experiments 1 - 9 (nominal temperature 30 - 150 °C) showed no reproducible weight loss. When visible contaminations, caused by explosive evaporation of the test item, were observed, the cells were meticulously cleaned and weighed. This weight was used as initial weight for the subsequent measurements. To avoid bias, these measurements were not used for calculations.

A calculation on base of the measured weight losses is not possible, and no vapour pressure could be stated. This was caused due to the behaviour and composition of the test item (UVCB substance). The test item is an UVCB substance with different components, which have different vapour pressures. Therefore, it is possible that these components evaporate at different temperatures with a different intensity. This could have caused the non reproducible weight loss.