Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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: 249-649-3 | CAS number: 29461-14-1
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:
- 2016-08-01 to 2016-08-18
- 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:
- 2006
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 113 Screening Test for Thermal Stability and Stability in Air
- Version / remarks:
- 1981
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- dynamic method
- Remarks:
- Vapour-Liquid Equilibrium (VLE)
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.01 hPa
- Remarks on result:
- other: Calculated from Antoine equation
- Temp.:
- 25 °C
- Vapour pressure:
- 0.02 hPa
- Remarks on result:
- other: Calculated from Antoine equation
- Temp.:
- 50 °C
- Vapour pressure:
- 0.12 hPa
- Remarks on result:
- other: Calculated from Antoine equation
- Conclusions:
- The vapour pressure of the test item was calculated to be 0.01, 0.02 and 0.12 hPa at 20, 25 and 50°C respectively.
- Executive summary:
The vapour pressure of the test item was determined according to OECD 104, using a dynamic method (vapour-liquid equilibrium). First a pre-test was performed to assess the thermal stability of the test substance. No thermal effects were observed up to a temperature of 300°C. The vapour pressure was assessed using 9 data points for which the temperature varied between 155.0 and 191.8 °C. The calculated vapour pressure were 0.01, 0.02 and 0.12 hPa at 20, 25 and 50°C respectively.
Reference
Thermal stability:
The test item showed no thermal effects until 300°C
Main test:
Vapour pressure was measured in range of 155 to 191.8°C
| No. | Temperature (°C) | Vapour pressure (hPa) | Remark |
| 1 | 155 | 22.9 | measured up |
| 2 | 164.7 | 34.9 | measured up |
| 3 | 174.7 | 48.9 | measured up |
| 4 | 183.5 | 64.7 | measured up |
| 5 | 187.8 | 73.2 | measured up |
| 6 | 191.8 | 83.3 | measured up |
| 7 | 188.5 | 78.1 | measured down |
| 8 | 182.4 | 62.6 | measured down |
| 9 | 172.4 | 43.6 | measured down |
The regression parameters used for the calculation were:
A = 10.4166
B = -3016.42
C= 273.15
Description of key information
For this endpoint, one study is available in which the vapour pressure of the test item is assessed according to OECD 104. The calculated vapour pressures were found to be 0.01, 0.02 and 0.12 hPa at 20, 25 and 50°C respectively.
Key value for chemical safety assessment
- Vapour pressure:
- 0.01 hPa
- 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.
