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EC number: 200-090-3 | CAS number: 51-34-3
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:
- 2015-11-03 to 2015-11-05
- 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)
- Version / remarks:
- 2006
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Version / remarks:
- 1996
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Temp.:
- 50 °C
- Vapour pressure:
- 0 Pa
- Conclusions:
- The vapour pressure was determined to be: 1.5 x 10^-5 Pa at 20°C, 2.8 x 10^-5 Pa at 25°C and 4.7 x 10^-4 Pa at 50°C ( by effusion method: vapour pressure balance) according to OECD Test Guideline 104 (2006) and Regulation EC 440/2008 Method A.4.Vapour Pressure.
Reference
Thermal Stability:
In the temperature range of 55-80°C an endothermic effect can be observed, which can be assigned to the melting point of the test item. An exothermic effect was observed starting at a temperature of 240°C up to the maximum test temperature of 300°C, with decomposition energy of greater than -280 J/g.
Table 1: Result of the DSC-measurement
No. |
Sample weight / mg |
Start / °C |
Energy / J/g |
PN9946 |
9.35 |
55 (endothermic) 240 (exothermic) |
+ 70 >-280 |
Table 2: Results of the Effusion method
No. |
Temperature / °C |
Vapour pressure / Pa |
1 |
40 |
1.97 x 10^-4 |
2 |
44 |
2.65 x 10^-4 |
3 |
46 |
3.09 x 10^-4 |
4 |
50 |
4.05 x 10^-4 |
5 |
53 |
5.51 x 10^-4 |
6 |
56 |
7.43 x 10^-4 |
7 |
59 |
1.11 x 10^-3 |
8 |
62 |
1.69 x 10^-3 |
9 |
65 |
2.17 x 10^-3 |
10 |
68 |
3.30 x 10^-3 |
Description of key information
According to OECD 104 (2006) a vapour pressure of1.5 x 10-5Pa at 20°C, 2.8 x 10-5Pa at 25°C and 4.7 x 10-4Pa at 50°C was determined (by effusion method: vapour pressure balance).
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 20 °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.
