Registration Dossier
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EC number: 207-317-5 | CAS number: 461-82-5
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- given by: Hess. Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
- Type of method:
- dynamic method
Test material
- Reference substance name:
- 4-(trifluoromethoxy)aniline
- EC Number:
- 207-317-5
- EC Name:
- 4-(trifluoromethoxy)aniline
- Cas Number:
- 461-82-5
- Molecular formula:
- C7H6F3NO
- IUPAC Name:
- 4-(trifluoromethoxy)aniline
- Test material form:
- liquid
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 20 °C
- Vapour pressure:
- 31.7 Pa
- Remarks on result:
- other:
- Remarks:
- extrapolated from vapour pressure curve
- Temp.:
- 25 °C
- Vapour pressure:
- 48.7 Pa
- Remarks on result:
- other:
- Remarks:
- extrapolated from vapour pressure curve
- Temp.:
- 50 °C
- Vapour pressure:
- 322 Pa
- Remarks on result:
- other:
- Remarks:
- extrapolated from vapour pressure curve
Any other information on results incl. tables
The vapour pressure was measured with the dynamic method in the temperature range of 81 °C to 150 °C. The measured vapour pressures at the corresponding temperatures are listed in the table below.
| Temperature / °C | Vapour Pressure / hPa |
| 80.7 | 20.0 |
| 93.3 | 40.0 |
| 104.5 | 70.0 |
| 115.4 | 100.0 |
| 131.6 | 200.0 |
| 149.8 | 400.0 |
During the measurement the test item showed a discolouration from yellow to green to black. Therefore it had to be assumed that the item decomposed during the measurement and the measurement was stopped at 150 °C. As the measured vapour pressures showed a good consistency all measured vapour pressures were used for the regression.
The vapour pressure values for 20, 25 and 50 °C were extrapolated, using Antoine constants A, B and C.
Vapour presure results from the regression calculation:
0.317 hPa at 20 °C
0.487 hPa at 25 °C
3.22 hPa at 50 °C
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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