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EC number: 425-150-8 | CAS number: 94723-86-1
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:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 996
- Report date:
- 1996
Materials and methods
Test guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- dynamic method
Test material
- Reference substance name:
- -
- EC Number:
- 425-150-8
- EC Name:
- -
- Cas Number:
- 94723-86-1
- Molecular formula:
- C15 H22 O3 S
- IUPAC Name:
- 2-butanoyl-3-hydroxy-5-(thian-3-yl)cyclohex-2-en-1-one
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- Name of test material (as cited in study report): 625-Triketon
Analytical purity: 99.4g/100g
Lot/batch No.: LJ 27881/1
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: calculated from the regression equation
- Temp.:
- 50 °C
- Vapour pressure:
- 0.001 Pa
- Remarks on result:
- other: extrapolatedcalculated from the regression equation
- Temp.:
- 52.1 °C
- Vapour pressure:
- 0.001 Pa
- Remarks on result:
- other: experimental data
- Temp.:
- 70.4 °C
- Vapour pressure:
- 0.173 Pa
- Remarks on result:
- other: experimental data
Any other information on results incl. tables
Result:
| Temperature [t/°C] |
Vapour Pressure [p/Pa] |
|
| Measurement | Calculation | |
| 52.1 | 0,000928 | 0,00112 |
| 52.1 | 0,00111 | 0,00112 |
| 52.1 | 0,00112 | 0,00112 |
| 52.1 | 0,00129 | 0,00112 |
| 61.1 | 0,00417 | 0,00423 |
| 61.1 | 0,00485 | 0,00423 |
| 70.0 | 0,0139 | 0,0147 |
| 70.0 | 0,0139 | 0,0147 |
| 70.4 | 0,0146 | 0,0155 |
| 70.4 | 0,0173 | 0,0155 |
The test substance is a solid in the temperature range of the test.
The regression of the results leads with a mean deviation of 0.29 % to the following equation:
ln(p/Pa) = 42.5458 - 16047.7 / (273.15 + t/°C)
The vapour pressure at 20 °Cand 50°C was calculated from the regression equation.
Applicant's summary and conclusion
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