Registration Dossier
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EC number: 682-872-8 | CAS number: 957787-76-7
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Followed guideline and GLP requirements
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. 0.059 Pa
- Conclusions:
- The vapor pressure of the test material was determined to be 5.9 x 10 –2 Pa at 25 degrees C using a vapor balance method.
- Executive summary:
- Vapor pressure of the test article was determined using a vapor pressure balance with measurements being made at several temperatures and linear regression analysis used to calculate the vapor pressure at 25 degrees C. Procedure used was designed to be compatible with Method A4 “Vapor Pressure” of Commission Regulation (EC) No. 440/2008 of 30 May 2008. The vapor pressure was determined to be 5.9 x 10–2Pa at 25 degrees C.
Reference
Test material did not change in appearance under conditions of test.
Results of Vapor Pressure Determination (6 runs, temperatures 40 to 50 degrees C in 1 degree increments)
Run No. |
Slope (SD) and intercept (SD) of line Log10Vp versus inverse of temperature in K |
Log10 Vp of Vp at 298.15 K |
1 |
-4560.428 (37.805) 14.088 (0.119) |
-1.208 |
2 |
-4609.993 (38.537) 14.236 (0.121) |
-1.226 |
3 |
-4615.228 (37.797) 14.248 (0.119) |
-1.231 |
4 |
-4.644.712 (32.467 14.338 (0.102) |
-1.240 |
5 |
-4657.153 (26.848) 14.375 (0.084) |
-1.245 |
6 |
-4609.507 (31.710) 14.227 (0.100) |
-1.233 |
Mean Log10Vp |
-1.230 |
|
Vp at 25 degrees C |
5.9 x 10-2Pa |
Description of key information
Vapor pressure of the test article was determined using a vapor pressure balance with measurements being made at several temperatures and linear regression analysis used to calculate the vapor pressure at 25 degrees C. Procedure used was designed to be compatible with Method A4 “Vapor Pressure” of Commission Regulation (EC) No. 440/2008 of 30 May 2008. The vapor pressure was determined to be 5.9 x 10–2Pa at 25 degrees C.
Key value for chemical safety assessment
- Vapour pressure:
- 0.059 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.
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