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EC number: 801-072-3 | CAS number: 1052075-57-6
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- July 29, 2013 - November 7, 2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The study was performed in accordance with the EC A.4 and OECD 104 guidelines and complied with the principles of GLP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- (2009)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- (2006)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Version / remarks:
- (1996)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- effusion method: by loss of weight or by trapping vaporisate
- Remarks:
- (isothermal thermogravimetry)
Test material
- Reference substance name:
- 2-[3-(9-butyl-1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxanyl)propoxy]ethyl methacrylate
- EC Number:
- 801-072-3
- Cas Number:
- 1052075-57-6
- Molecular formula:
- C23H54O7Si5
- IUPAC Name:
- 2-[3-(9-butyl-1,1,3,3,5,5,7,7,9,9-decamethylpentasiloxanyl)propoxy]ethyl methacrylate
- Details on test material:
- - Name of test material (as cited in study report): KF-1622
- Description: Clear colourless liquid
- Storage condition of test material: In refrigerator (2-8°C) in the dark
- Expiration date of the lot/batch: May 17, 2014
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 25 °C
- Vapour pressure:
- 0.002 Pa
- Temp.:
- 20 °C
- Vapour pressure:
- 0.001 Pa
Any other information on results incl. tables
Results of the isothermal TGA analysis
Temperature |
Weight loss |
νT |
logνT |
logPT |
PT |
|
|
|
|
|
|
110 |
3.858 |
4.61 x 10-4 |
-3.34 |
0.81 |
6.4 |
|
3.557 |
4.25 x 10-4 |
-3.37 |
0.77 |
5.9 |
|
3.516 |
4.20 x 10-4 |
-3.38 |
0.76 |
5.8 |
|
|
|
|
|
|
120 |
6.694 |
7.99 x 10-4 |
-3.10 |
1.06 |
11 |
|
8.976 |
1.07 x 10-3 |
-2.97 |
1.19 |
16 |
|
8.055 |
9.61 x 10-4 |
-3.02 |
1.14 |
14 |
|
|
|
|
|
|
130 |
13.10 |
1.56 x 10-3 |
-2.81 |
1.36 |
23 |
|
15.37 |
1.83 x 10-3 |
-2.74 |
1.44 |
27 |
|
14.31 |
1.71 x 10-3 |
-2.77 |
1.40 |
25 |
Log PT 20°C was calculated to be -3.07
Log PT 25°C was calculated to be -2.79
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure of the test substance at 25°C has been determined as 1.6E-03 Pa (8.5E-04 Pa at 20°C) using the isothermal thermogravimetric effusion method (GLP-compliant study in accordance with EC A.4, OECD 104 and EPA OPPTS 830.7950).
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