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EC number: 948-264-4 | 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:
- November 2017 - April 2018
- 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:
- version 2006
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- version 2009
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 23 March 2017
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: extrapolation
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: extrapolation
- Transition / decomposition:
- ambiguous
- Remarks:
- After assay at 90°C, a degradation of the test item was oserved. The major part of the test item became solid and blackened.
- Conclusions:
- The vapour pressure of the test item is 2.1 x 10-7 Pa extrapolated at 20°C and is 6.3 x 10-7 extrapolated at 25°C.
Reference
The mass of sample weighed for each assay was reported in the table below. The sample was placed in a Knudsen effusion cell. Then the cell was placed in the apparatus.
| Assay N° | T°C | Mass of the test item (mg) | Knudsen effusion cell aperture size (µm) | Taken into account or not |
| 1 | 100 | 12.23 |
279.9 |
No |
2 |
95 |
12.23 |
279.9 |
No |
3 |
90 |
12.23 |
279.9 |
No |
4 |
80 |
11.54 |
279.9 |
Yes |
| 5 | 75 | 11.54 | 279.9 | Yes |
| 6 | 70 | 11.54 | 279.9 | Yes |
After assay n° 3, an observation of the test item was made and a degradation of the test item was observerd. The major part of te test item became solid and blackened. The assays n° 1, 2 and 3 were not taken into account.
After the assays 4, 5 and 6, the test item remained stable.
Description of key information
The vapour pressure of the test item is 2.1 x 10-7 Pa extrapolated at 20°C and is 6.3 x 10 -7 extrapolated at 25°C according to experimental test carried out under OECD guideline 104 (effusion method: vapour pressure balance).
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °C
Additional information
The vapour pressure of the test item is 2.1 x 10 -7 Pa extrapolated at 20°C and is 6.3 x 10-7 extrapolated at 25°C.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
