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EC number: 454-790-0 | CAS number: -
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 26./27.06.2003
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 67/548/EEC
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 67/548/EEC
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- dynamic method
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.026 hPa
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.047 hPa
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 0.56 hPa
- Conclusions:
- The vapour pressure at 20, 25 and 50 °C was determined to be 2.6E-2, 4.7E-2 and 5.6E-1 hPa respectively.
- Executive summary:
A study was conducted according to OECD Guideline 104, Directive 67/548EEC method A.4 to determine the vapour pressure of the test item. The vapour pressure is measured by determining the boiling point of the lest item at various specified pressures between roughly 10 and 1000 hPa. A steady temperature under constant pressure indicates that the boiling point (boiling equilibrium in case of a mixture) has been reached.
The vapour pressure at 20, 25 and 50 °C was determined to be 2.6E-2, 4.7E-2 and 5-6E.1 hPa respectively.
Reference
Vapour Pressure (Dynamic Method)
The vapour pressure was measured in the temperature range of 92 °C to 225 °C.
| Temperature / °C | Vapour Pressure / hPa |
| 92.4 | 10.1 |
| 99.5 | 15.1 |
| 105.7 | 20.8 |
| 113.2 | 30.8 |
| 120.1 | 40.4 |
| 124.5 | 50.2 |
| 133.9 | 71.0 |
| 143.4 | 100.8 |
| 163.9 | 200.8 |
| 171.3 | 250.4 |
| 195.9 | 500.6 |
| 212.1 | 749.1 |
| 224.6 | 1000.8 |
Description of key information
The vapour pressure at 20, 25 and 50 °C was determined to be 2.6E-2, 4.7E-2 and 5-6E.1 hPa respectively.
Key value for chemical safety assessment
- Vapour pressure:
- 0.047 hPa
- at the temperature of:
- 25 °C
Additional information
A study was conducted according to OECD Guideline 104, Directive 67/548EEC method A.4 to determine the vapour pressure of the test item. The vapour pressure is measured by determining the boiling point of the lest item at various specified pressures between roughly 10 and 1000 hPa. A steady temperature under constant pressure indicates that the boiling point (boiling equilibrium in case of a mixture) has been reached.
The vapour pressure at 20, 25 and 50 °C was determined to be 2.6E-2, 4.7E-2 and 5-6E.1 hPa respectively.
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