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EC number: 202-393-6 | CAS number: 95-13-6
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 31 July 2018 to 06 September 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 2016
- 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: isothermal thermogravimetry
Test material
- Reference substance name:
- Indene
- EC Number:
- 202-393-6
- EC Name:
- Indene
- Cas Number:
- 95-13-6
- Molecular formula:
- C9H8
- IUPAC Name:
- indene
- Test material form:
- liquid
- Details on test material:
- Appereance: Colorless transparent liquid
Storage conditions: At room temperature container flushed with nitrogen
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 200 Pa
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 320 Pa
Any other information on results incl. tables
Table: Results of the vapour pressure isothermal TGA analysis (substance)
Temperature |
Weight loss |
νT |
log νT |
log PT |
PT |
20 |
52.9575 |
6.32E-3 |
-2.20 |
2.32 |
2.1E2 |
|
51.7957 |
6.18 E-3 |
-2.21 |
2.31 |
2.0E2 |
30 |
105.789 |
1.26 E-2 |
-1.90 |
2.71 |
5.1E2 |
|
101.782 |
1.21 E-2 |
-1.92 |
2.69 |
4.8E2 |
40 |
202.897 |
2.42 E-2 |
-1.62 |
3.07 |
1.2E3 |
|
190.780 |
2.28 E-2 |
-1.64 |
3.03 |
1.1E3 |
50 |
412.488 |
4.92 E-2 |
-1.31 |
3.46 |
2.9E3 |
|
339.722 |
4.06 E-2 |
-1.39 |
3.36 |
2.3E3 |
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure of the substance at 20°C and 25°C was determined to be 2.0E2 Pa and 3.2E2 Pa, resp.
- Executive summary:
The vapour pressure of the substance was determined using the isothermal thermogravimetric effusion method in a GLP study based on EC A.4, OECD 104 and OPPTS 830.7950. Validation of the method was performed using a set of five reference substances.
The experiment was performed in duplicate. The vapour pressure curve (log PT as function of 1/T; with T in K) of the substance was constructed from weight losses measured at 20°C, 30°C, 40°C and 50°C. The vapour pressure of the substance at 20°C and 25°C was calculated from the vapour pressure curve to be 2.0E2 Pa and 3.2E2 Pa, resp.
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