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EC number: 485-340-1 | 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:
- 20.10.05 - 09.03.06
- 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:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0 hPa
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0 hPa
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 0.002 hPa
- Conclusions:
- The test item had a vapour pressure of 1.5E-5 hPa at 20°C.
- Executive summary:
A study was performed according to 67/548/EEC. The vapor pressure was measured in the temperature range of 22 °C to 65 °C. The test item had a calculated vapour pressure of 1.5E-5 hPa at 20°C.
Reference
Vapor Pressure Balance (Effusion Method)
The vapor pressure was measured in the temperature range of 22 °C to 65 °C. The measured vapor pressures at the corresponding temperatures are listed in the following table:
Temperature / °C |
Vapor pressure / hPa |
22.4 |
2.5 X 10-5 |
22.6 |
3.3 X 10-5 |
26.2 |
4.2 X 10-5 |
29.5 |
8.4 X 10-5 |
34.9 |
1.6 X 10-4 |
42.2 |
5.0 X 10-4 |
47.8 |
1.6 X 10-3 |
53.2 |
3.9 X 10-3 |
57.2 |
7.6 X 10-3 |
58.0 |
7.6 X 10-3 |
61.3 |
1.1 X 10-2 |
65.0 |
1.7 x 10-2 |
The values for 20, 25 and 50 °C are calculated, using the Antoine constants.
T/°C |
p/ hPa |
p/ Pa |
20 |
1.5 X 10-5 |
1.5 X 10-3 |
25 |
3.8 X 10-5 |
3.8 X 10-3 |
50 |
2.2 X 10-3 |
2.2 X 10-1 |
Description of key information
Key value for chemical safety assessment
- Vapour pressure:
- 0 hPa
- at the temperature of:
- 20 °C
Additional information
A study was performed according to 67/548/EEC.The vapor pressure was measured in the temperature range of 22 °C to 65 °C.The test item had a calculated vapour pressure of 1.5E-5 hPa at 20°C.
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