Registration Dossier
Registration Dossier
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EC number: 211-330-1 | CAS number: 638-29-9
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:
- 2 011
- Report date:
- 2011
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- dynamic method
Test material
- Reference substance name:
- Valeryl chloride
- EC Number:
- 211-330-1
- EC Name:
- Valeryl chloride
- Cas Number:
- 638-29-9
- Molecular formula:
- C5H9ClO
- IUPAC Name:
- pentanoyl chloride
- Test material form:
- liquid
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 11.7 hPa
- Remarks on result:
- other: extrapolated
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 15.7 hPa
- Remarks on result:
- other: extrapolated
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 58.3 hPa
- Remarks on result:
- other: extrapolated
Vapour pressure at 50°C (if relevant for classification of gas under pressure)
- Key result
- Vapour pressure:
- 58.3 hPa
Any other information on results incl. tables
Results:
| Temperature [t/°C] |
Vapour Pressure [p/hPa] |
|
| Measurement | Calculation | |
| 29.17 | 19.94 | 19.942 |
| 36.66 | 29.92 | 29.930 |
| 46.77 | 49.88 | 49.891 |
| 53.88 | 69.86 | 69.831 |
| 61.84 | 99.74 | 99.675 |
| 78.82 | 199.7 | 199.58 |
| 89.79 | 299.6 | 299.91 |
| 104.78 | 499.6 | 499.98 |
| 115.49 | 699.8 | 700.10 |
| 127.81 | 1005.6 | 1004.62 |
The regression cf the results leads with a mean deviation cf 0.06 % to the following equation:
In(p/hPa) = 16.5594 - 3293.69 I (213.61 + t/°C)
The test item is liquid in the temperature range used for the vapour pressure measurements.
The vapour pressures at 20°C, 25°C and 50°C were calculated from the regression equation
Applicant's summary and conclusion
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