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EC number: 249-720-9 | CAS number: 29598-76-3
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 21 August 2015 to 11 September 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study performed in accordance with OECD, EU & US EPA test guidelines in compliance with GLP and reported with a valid GLP certificate
- Reason / purpose for cross-reference:
- reference to same study
- 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
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: by loss of weight or by trapping vaporisate
- Remarks:
- isothermal thermogravimetric
- Temp.:
- 20 °C
- Vapour pressure:
- < 0 Pa
- Temp.:
- 20 °C
- Vapour pressure:
- < 0 mm Hg
- Temp.:
- 25 °C
- Vapour pressure:
- < 0 Pa
- Temp.:
- 25 °C
- Vapour pressure:
- < 0 mm Hg
- Conclusions:
- The vapour pressure of the test item was:
<1.3 E-8 Pa (20°C)
<1.0 E-10 mm Hg (20°C)
<2.9 E-8 Pa (25°C)
<2.2 E-10 (25°C) - Executive summary:
The isothermal TGA effusion method was applied for the determination of the vapour pressure of 2,2-Bis[[3-(dodecylthio)-1-oxopropoxy]methyl]propane-1,3-diyl bis[3-(dodecylthio)propionate].
Study performed in accordance with the following guidelines:
European Community (EC), EC no. 761/2009, Part A: Methods for the Determination of Physico-Chemical Properties, Guideline A.4: “Vapour Pressure", Official Journal of the European Union no. L220, August 24, 2009.
Organization for Economic Co-operation and Development (OECD), OECD Guidelines for the Testing of Chemicals no.104: "Vapour Pressure", March 23, 2006.
United States Environmental Protection Agency (EPA), Product Properties Test Guidelines no. OPPTS 830.7950: "Vapor pressure", August 1996.
The vapour pressure of the test item at 20°C (293K) and 25°C (298K) was:
20°C
25°C
[Pa]
[mm Hg]
[Pa]
[mm Hg]
Test item
<1.3 x 10-8
<1.0 x 10-10
<2.9 x 10-8
<2.2 x 10-10
The weight losses of the test item were obtained with a temperature program of above the melting temperature of the test item.
Reference
Results of the isothermal GA analysis
Temperature [°C] |
Weight loss [μg/min] |
vT [g/cm2/h] |
Log vT |
Log PT |
PT [Pa] |
210 |
0.6435 1.171 |
7.58 x 10-5 1.40 x 10-4 |
-4.11 -3.85 |
-0.17 0.14 |
0.68 1.4 |
220 |
0.9583 1.228 |
1.14 x 10-4 1.47 x 10-4 |
-3.94 -3.83 |
0.04 0.16 |
1.1 1.5 |
230 |
1.282 1.315 |
1.53 x 10-4 1.57 x 10-4 |
-3.82 -3.80 |
0.18 0.20 |
1.5 1.6 |
240 |
1.646 1.497 |
1.96 x 10-4 1.79 x 10-4 |
-3.71 -3.75 |
0.31 0.26 |
2.0 1.8 |
Description of key information
Key value determined in GLP accredited laboratory test using TGA effusion method in accordance with OECD Guideline 104, EU Method A.4 & US EPS Procedure 830.7950
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
The isothermal TGA effusion method was applied for the determination of the vapour pressure of 2,2-Bis[[3-(dodecylthio)-1-oxopropoxy]methyl]propane-1,3-diyl bis[3-(dodecylthio)propionate].
The vapour pressure of the test item at 20°C (293K) and 25°C (298K) was:
|
20°C |
25°C |
||
[Pa] |
[mm Hg] |
[Pa] |
[mm Hg] |
|
Test item |
<1.3 x 10-8 |
<1.0 x 10-10 |
<2.9 x 10-8 |
<2.2 x 10-10 |
The weight losses of the test item were obtained with a temperature program of above the melting temperature of the test item.
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