Registration Dossier
Registration Dossier
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EC number: 700-093-4 | CAS number: 176969-34-9
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- no
- Type of method:
- gas saturation method
Test material
- Reference substance name:
- 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid
- EC Number:
- 700-093-4
- Cas Number:
- 176969-34-9
- Molecular formula:
- C6H6F2N2O2
- IUPAC Name:
- 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 25 °C
- Vapour pressure:
- 0 hPa
- Remarks on result:
- other: extrapolated on the base of experimental data
- Temp.:
- 99.7 °C
- Vapour pressure:
- 0.004 hPa
Any other information on results incl. tables
vapour pressure measurement at sublimation
| Temperature (°C) | measurement (hPa) |
| 99.7 | 0.00397 |
| 101.0 | 0.00439 |
| 112.6 | 0.0135 |
| 114.4 | 0.0203 |
| 128.1 | 0.0988 |
| 129.5 | 0.0898 |
| 137.8 | 0.139 |
| 138.9 | 0.148 |
| 147.0 | 0.343 |
| 148.4 | 0.459 |
The vapor pressure at 20 °C was calculated from the regression equation (mean deviation: 13.46 %):
In (p/bar)=27.6692-14946.26/(273. 15+t) t in Celsius.
Applicant's summary and conclusion
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