Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 935-977-0 | 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:
- 11.11.2008 - 22.01.2009
- 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
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- effusion method: vapour pressure balance
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Temp.:
- 50 °C
- Vapour pressure:
- 0 Pa
- Conclusions:
- The vapour pressure of the test substance was determined to be 4.5E-9 Pa at 20 °C, 1.1E-8 at 25 °C and 7.8E-7 at 50 °C, respectively.
- Executive summary:
A study was conducted according to OECD TG 104 and Regulation (EC) No 440/2008 method A.4 to determine the vapour pressure of the test item. The vapour pressure was measured in the temperature range of 28 °C to 146 °C using the effusion method (vapour pressure balance). Above 106 °C a vapour pressure could be measured. The vapour pressure was calculated using the linear regression equation of the Log P versus 1/T function. The vapour pressure of the test substance was determined to be 4.5E-9 Pa at 20 °C, 1.1E-8 at 25 °C and 7.8E-7 at 50 °C, respectively.
Reference
The vapour pressure was measured in the temperature range of 28 °C to 146 °C. Above 106 °C a vapour pressure could be measured.
Temperature / °C |
Vapour pressure / hPa |
106.2 |
1.3E-5 |
111.6 |
2.4E-5 |
117.7 |
5.1E-5 |
125.0 |
1.0E-4 |
129.7 |
1.7E-4 |
132.8 |
2.4E-4 |
137.0 |
3.4E-4 |
140.6 |
4.5E-4 |
145.8 |
7.7E-4 |
The values for 20, 25 and 50 °C were calculated, using the Antoine constants A, B and C.
T/°C |
log(p/hPa)=A + B/(C+T[°C]) |
p/hPa |
p/Pa |
20 |
A = 13.75370 |
4.5E-11 |
4.5E-9 |
25 |
B = -7064.79 |
1.1E-10 |
1.1E-8 |
50 |
C = 273.15 |
7.8E-9 |
7.8E-7 |
Description of key information
The vapour pressure of the test substance was determined to be 4.5E-9 Pa at 20 °C, 1.1E-8 at 25 °C and 7.8E-7 at 50 °C, respectively.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
A study was conducted according to OECD TG 104 and Regulation (EC) No 440/2008 method A.4 to determine the vapour pressure of the test item. The vapour pressure was measured in the temperature range of 28 °C to 146 °C using the effusion method. Above 106 °C a vapour pressure could be measured. The vapour pressure was calculated using the linear regression equation of the Log P versus 1/T function. The vapour pressure of the test substance was determined to be 4.5E-9 Pa at 20 °C, 1.1E-8 at 25 °C and 7.8E-7 at 50 °C, respectively (reference 4.6-1).
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.
