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EC number: 241-997-4 | CAS number: 18096-62-3
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-Sep-2014 to 19-Sep-2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- GLP compliance:
- no
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.18 Pa
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.35 Pa
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 6.8 Pa
- Conclusions:
- Vapour pressure values of 0.18 Pa (at 20 °C), 0.35 Pa (at 25 °C) and 6.8 Pa (at 50 °C) were determined for the test substance according to E.U. Method A.4.
Reference
Results
The vapour pressure was measured in the temperature range of 21 to 34 °C. The measured vapour pressure values together with the measured temperatures are listed in the table.
Results of the Effusion method
No. |
Temperature / °C |
Vapour pressure / Pa |
1 |
21 |
2.20 x 10-1 |
2 |
23 |
2.65 x 10-1 |
3 |
25 |
3.33 x 10-1 |
4 |
27 |
4.30 x 10-1 |
5 |
29 |
5.75 x 10-1 |
6 |
32 |
8.54 x 10-1 |
7 |
34 |
1.10 x 100 |
Final results
The vapour pressure of the test item was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C, according to Regulation EC 440/2008 Method A.4. Vapour Pressure, OECD Test Guideline No. 104 (2006), and OCSPP Test Guideline 830.7950 (1996).
Calculated vapour pressure values for 20, 25 and 50 °C
Temperature / °C |
Vapour pressure / Pa |
20 |
1.8 x 10-1 |
25 |
3.5 x 10-1 |
50 |
6.8 x 100 |
Description of key information
Vapour pressure: 0.35 Pa at 25 °C (EU Method A.4, effusion method: vapour pressure balance)
Key value for chemical safety assessment
- Vapour pressure:
- 0.35 Pa
- at the temperature of:
- 25 °C
Additional information
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.
