Registration Dossier
Registration Dossier
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EC number: 203-569-5 | CAS number: 108-29-2
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2020
- 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:
- 2021
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:
- γ-valerolactone
- EC Number:
- 203-569-5
- EC Name:
- γ-valerolactone
- Cas Number:
- 108-29-2
- Molecular formula:
- C5H8O2
- IUPAC Name:
- 5-methyloxolan-2-one
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.3 hPa
- Remarks on result:
- other: extrapolated
- Temp.:
- 25 °C
- Vapour pressure:
- 0.44 hPa
- Remarks on result:
- other: extrapolated
Any other information on results incl. tables
| temperature t/°C | vapor pressure p/hPa | |
| measurement | calculated a) | |
| 26.74 | 0.50 | 0.502 |
| 36.39 | 1.01 | 1.001 |
| 46.84 | 1.99 | 1.995 |
| 53.41 | 3.00 | 2.992 |
| 62.25 | 4.99 | 5.009 |
| 68.33 | 7.01 | 7.007 |
| 75.11 | 10.03 | 10.018 |
| 89.21 | 19.97 | 20.017 |
| 98.12 | 29.94 | 30.013 |
| 110.12 | 49.99 | 49.993 |
| 118.59 | 69.97 | 70.092 |
| 128.00 | 100.3 | 100.04 |
| 147.88 | 199.9 | 199.56 |
| 160.61 | 299.4 | 298.80 |
| 178.14 | 499.9 | 499.00 |
| 190.63 | 699.9 | 699.82 |
| 205.06 | 1005.4 | 1008.71 |
a) calculated by use of the unrounded regression equation.
The regression of the vapor pressure data leads with a mean deviation
of 0.25 % to the following rounded equation:
In ( p/hPa) = 17.1461 -4277.93 / ( 213.13 + t/°C)
Applicant's summary and conclusion
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