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EC number: 233-759-3 | CAS number: 10347-88-3
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:
- 2017-02-21
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- adopted 23rd May 2006
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 23rd July 2009
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Version / remarks:
- August 1996
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: Knudsen cell
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Changzhou Sunlight Pharmaceutical Co., Ltd., China; 20160505 / 116727
- Expiration date of the lot/batch: May 2017
- Purity test date: 30.01.2017
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: at room temperature
- Stability under test conditions: stable - Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: calculated from the regression equation
- Key result
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: calculated from regression equation
- Conclusions:
- For the test item, the vapour pressures at 20 °C and at 25 °C were calculated from the regression equation:
Vapour pressure at 20 °C: 3.36 * 10-05 Pa
Vapour pressure at 25 °C: 7.07 * 10-05 Pa - Executive summary:
The vapour pressure of the test substance was determined according to OECD 104 using the effusion method (weight loss) (LAUS, 2017).
The vapour pressure was examined at five different temperatures. Four temperatures could be evaluated as they showed reproducible weight loss. For these temperatures, 1/T was plot-ted against log (P).
Table: Vapour Pressures (Effusion Method)
Experiment
T
Mean P
Stand. Dev. P
RSD P
No.
K
Pa
Pa
%
2
318.2
1.18E-03
6.45E-05
5.5%
3
333.2
6.71E-03
1.58E-03
23.6%
4
348.2
3.36E-02
6.14E-03
18.2%
5
363.2
1.95E-01
1.80E-02
9.2%
In this table, E-0X represents multiplication with 10-x.
Stand. Dev. = Standard Deviation; RSD = Relative Standard Deviation
The graph 1/T vs. log (P) shows a straight line with a correlation coefficient of - 0.9990. For the test item 3-tertbutyl adipic acid, the following vapour pressures at 20 °C and at 25 °C were calculated from the regression equation:
Vapour pressure at 20 °C: 3.36 * 10-05 Pa
Vapour pressure at 25 °C: 7.07 * 10-05 Pa
Reference
Vapour pressure was examined at five different temperatures. Four temperatures could be evaluated as they showed reproducible weight loss. For these temperatures, 1/T was plot-ted against log (P).
Table: Vapour Pressures (Effusion Method)
Experiment |
T |
Mean P |
Stand. Dev. P |
RSD P |
No. |
K |
Pa |
Pa |
% |
2 |
318.2 |
1.18E-03 |
6.45E-05 |
5.5% |
3 |
333.2 |
6.71E-03 |
1.58E-03 |
23.6% |
4 |
348.2 |
3.36E-02 |
6.14E-03 |
18.2% |
5 |
363.2 |
1.95E-01 |
1.80E-02 |
9.2% |
In this table, E-0X represents multiplication with 10-x.
Stand. Dev. = Standard Deviation; RSD = Relative Standard Deviation
The graph 1/T vs. log (P) shows a straight line with a correlation coefficient of - 0.9990. For the test item, the vapour pressures at 20 °C and at 25 °C were calculated from the regression equation.
Description of key information
For the test item, the vapour pressures at 20 °C and at 25 °C were calculated from the regression equation:
Vapour pressure at 20 °C: 3.36 * 10-05 Pa
Vapour pressure at 25 °C: 7.07 * 10-05 Pa
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
The vapour pressure of the test substance was determined according to OECD 104 using the effusion method (weight loss) (LAUS, 2017).
The vapour pressure was examined at five different temperatures. Four temperatures could be evaluated as they showed reproducible weight loss. For these temperatures, 1/T was plot-ted against log (P).
Table: Vapour Pressures (Effusion Method)
Experiment |
T |
Mean P |
Stand. Dev. P |
RSD P |
No. |
K |
Pa |
Pa |
% |
2 |
318.2 |
1.18E-03 |
6.45E-05 |
5.5% |
3 |
333.2 |
6.71E-03 |
1.58E-03 |
23.6% |
4 |
348.2 |
3.36E-02 |
6.14E-03 |
18.2% |
5 |
363.2 |
1.95E-01 |
1.80E-02 |
9.2% |
In this table, E-0X represents multiplication with 10-x.
Stand. Dev. = Standard Deviation; RSD = Relative Standard Deviation
The graph 1/T vs. log (P) shows a straight line with a correlation coefficient of - 0.9990. For the test item 3-tertbutyl adipic acid, the following vapour pressures at 20 °C and at 25 °C were calculated from the regression equation:
Vapour pressure at 20 °C: 3.36 * 10-05 Pa
Vapour pressure at 25 °C: 7.07 * 10-05 Pa
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