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EC number: 429-780-4 | 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:
- 18 MAY 2009 - 30 JUL 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- effusion method: vapour pressure balance
- Temp.:
- 25 °C
- Vapour pressure:
- 0 hPa
- Conclusions:
- The vapour pressure of the test item is caluclated by extrapolation:
20 °C: 0.000032 hPa
25 °C: 0.000067 hPa
50 °C: 0.0017 hPa - Executive summary:
The vapour pressure of the sample was tested according to EU Method A.4 and OECD Guideline 104 in a non-GLP study with the effusion method.
The vapour pressure of the test item is caluclated by extrapolation:
20 °C: 0.000032 hPa
25 °C: 0.000067 hPa
50 °C: 0.0017 hPa
Reference
The vapour pressure was measured in the temperature range of 23 °C to 70 °C. Above 33 °C a vapour pressure could be measured. The measured vapour pressures at the corresponding temperatures are listed in the following table:
| Temperature [°C] | Vapour pressure [hPa] |
| 32.9 | 1.7 x 10 -4 |
| 36.4 | 3.4 x 10 -4 |
| 37.6 | 4.2 x 10 -4 |
| 39.2 | 4.3 x 10 -4 |
| 40.1 | 5.2 x 10 -4 |
| 42.4 | 6.5 x 10 -4 |
| 45.8 | 1.1 x 10 -3 |
| 49.1 | 1.5 x 10 -3 |
| 55.3 | 3.4 x 10 -3 |
| 60.6 | 6.4 x 10 -3 |
| 66.1 | 1.1 x 10-2 |
| 70.0 | 1.6 x 10-2 |
The figure (attached as background material) gives the vapour pressure (logarithmic scale) as a function of the inverse temperature (1/T, T in Kelvin). Only for better readability the temperature is reported in a centigrade scale. The values for 20, 25 and 50 °C are calculated, using the Antoine constants A, B and C as shown there.
| T [°C] | p [hPa] | p [Pa] |
| 20 | 3.2 x 10-5 | 3.2 x 10-3 |
| 25 | 6.7 x 10-5 | 6.7 x 10-3 |
| 50 | 1.7 x 10-3 | 1.7 x 10-1 |
Description of key information
The vapour pressure of CC-5 -V was tested according to EU Method A.4 and OECD Guideline 104 in a non-GLP study with the effusion method.
The vapour pressure of the test item is caluclated by extrapolation:
20 °C: 0.000032 hPa
25 °C: 0.000067 hPa
50 °C: 0.0017 hPa
Key value for chemical safety assessment
- Vapour pressure:
- 0 hPa
- at the temperature of:
- 25 °C
Additional information
The values for 20, 25 and 50 °C are calculated, using the Antoine constants.
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