Registration Dossier
Registration Dossier
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EC number: 206-108-6 | CAS number: 301-10-0
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:
- 28 JAN 2010 - 19 APR 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- effusion method: vapour pressure balance
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. 0.3 Pa
- Remarks on result:
- other: Mean of 7 runs.
- Conclusions:
- The vapour pressure of the test material has been determined to be 0.3 Pa at 25°C.
- Executive summary:
Vapor pressure was determined using the effusion vapor pressure balance method according to EU Method A.4 and GLP. The vapor pressure measurement was repeated for 7 runs, with same sample taken through temperature/vacuum cycles, to allow determination of any influence from volatile impurities. The mean and std. deviation of these seven determinations was 0.30 ± 0.02 Pa at 20°C , indicating very good consistency across the repeated measurements, and that the measurement was not influenced by presence of volatile impurities.
Reference
Run |
Log10 [Vp(25°C)] |
| 1 | -0.478 |
| 2 | -0.517 |
| 3 | -0.554 |
| 4 | -0.500 |
| 5 | -0.487 |
| 6 | -0.530 |
| 7 | -0.552 |
| Mean | -0.517 |
| Vapour Pressure | 0.3 Pa |
The vapor pressure determinations gave 0.30 ± 0.02 (mean ± 1 std. dev., n=7).
Description of key information
Vapor pressure was determined using the effusion vapor pressure balance method according to EU Method A.4 and GLP. The vapor pressure measurement was repeated for 7 runs, with same sample taken through temperature/vacuum cycles, to allow determination of any influence from volatile impurities. The mean and std. deviation of these seven determinations was 0.30 ± 0.02 Pa at 20°C , indicating very good consistency across the repeated measurements, and that the measurement was not influenced by presence of volatile impurities.
Key value for chemical safety assessment
- Vapour pressure:
- 0.3 Pa
- at the temperature of:
- 20 °C
Additional information
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