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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10 February 2017 to 15 February 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: vapour pressure balance

Test material

Constituent 1
Reference substance name:
Fatty acids, C16-18-UNSATD., trimers, tris(16-Methylheptadecyl) esters
EC Number:
600-407-9
Cas Number:
103213-22-5
IUPAC Name:
Fatty acids, C16-18-UNSATD., trimers, tris(16-Methylheptadecyl) esters
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: CBI
- Expiration date of the lot/batch: 10 June 2018

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature in the dark

Results and discussion

Vapour pressureopen allclose all
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
0.029 Pa
Key result
Test no.:
#2
Temp.:
70 °C
Vapour pressure:
2.35 Pa
Key result
Test no.:
#3
Temp.:
160 °C
Vapour pressure:
3.25 Pa

Any other information on results incl. tables

Preliminary Run Vapor Pressure Data
Temperature (ºC) Temperature (K) Vapour Pressure (Pa) Temperature (ºC) Temperature (K) Vapour Pressure (Pa)
20 293.15 0.014187978 50 323.15 0.244291443
21 294.15 0.012633131 51 324.15 0.271501265
25 298.15 0.017422615 52 325.15 0.299085915
26 299.15 0.018824754 53 326.15 0.329266605
27 300.15 0.020365718 54 327.15 0.359586121
28 301.15 0.021823387 55 328.15 0.415046956
29 302.15 0.026321338 56 329.15 0.443450678
30 303.15 0.028209366 57 330.15 0.476699413
31 304.15 0.030486106 58 331.15 0.520526662
32 305.15 0.035483828 59 332.15 0.567366426
33 306.15 0.038912821 60 333.15 0.614109012
34 307.15 0.043882778 61 334.15 0.665696612
35 308.15 0.050268757 62 335.15 0.73916313
36 309.15 0.054669529 63 336.15 0.798400022
37 310.15 0.060291967 64 337.15 0.874754113
38 311.15 0.068413265 65 338.15 0.943028553
39 312.15 0.076354091 66 339.15 1.060072433
40 313.15 0.086585539 67 340.15 1.14003599
41 314.15 0.094804016 68 341.15 1.213627451
42 315.15 0.10631266 69 342.15 1.319357043
43 316.15 0.120778289 70 343.15 1.43107002
44 317.15 0.131329036 71 344.15 1.543171708
45 318.15 0.147071862 72 345.15 1.670072207
46 319.15 0.160871128 73 346.15 1.789087411
47 320.15 0.180737074 74 347.15 1.905062334
48 321.15 0.203504476 75 348.15 2.029408441
49 322.15 0.224203376 76 349.15 2.182297096

Definitive Run - direct values of the vapor pressure at 25 °C
Run Mass Difference (μg) Vapor Pressure (Pa)
1 29.68 0.041203444
2 20.57 0.02855643
3 33.25 0.046159519
4 32.89 0.045659746
5 21.79 0.030250103
6 14.89 0.020671135
7 14.44 0.02004642
8 13.81 0.019171818
9 13.85 0.019227348
10 13.46 0.018685928

Definitive Run - direct values of the vapor pressure at 70 °C
Run Mass Difference (μg) Vapor Pressure (Pa)
1 3000.4 4.165323898
2 2133.47 2.961802952
3 1839.57 2.553794455
4 1686.39 2.341141371
5 1579.54 2.192806196
6 1510.47 2.09691934
7 1432.37 1.988496531
8 1315.76 1.826611976
9 1230.98 1.708915615
10 1230.98 1.708915615

Definitive Run - direct values of the vapor pressure at 160 °C
Run Mass Difference (μg) Vapor Pressure (Pa)
1 5489.98 7.621498765
2 4708.29 6.536312777
3 3739.95 5.19200877
4 2313.29 3.211439182
5 2027.99 2.815369688
6 1611.7 2.237452515
7 1085.05 1.506327388
8 887.53 1.232119024
9 809.95 1.124418108
10 739.65 1.026823697

Final Results
Temperature (°C) Temperature (K) Vapor Pressure (Pa)
25 298 2.90 x 10-2
70 343 2.35
160 433 3.25

Applicant's summary and conclusion

Conclusions:
The vapor pressure (Pa) at 25 °C, 70 °C, and 160 °C was 2.90 x 10^-2 Pa, 2.35 Pa, and 3.25 Pa, respectively.
Executive summary:

The vapor pressure of the test substance has been determined at three temperatures using the vapor pressure balance method, designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.

The vapor pressure (Pa) at 25 °C, 70 °C, and 160 °C was 2.90 x 10^-2 Pa, 2.35 Pa, and 3.25 Pa, respectively.

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