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: 203-149-1 | CAS number: 103-83-3
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:
- 2013
- Reliability:
- 1 (reliable without restriction)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- effusion method: vapour pressure balance
- Temp.:
- -19.77 °C
- Vapour pressure:
- 5.148 - 5.264 Pa
- Temp.:
- -14.75 °C
- Vapour pressure:
- 9.267 - 9.454 Pa
- Temp.:
- -9.82 °C
- Vapour pressure:
- 14.425 - 14.704 Pa
- Temp.:
- 20 °C
- Vapour pressure:
- 213.57 Pa
- Remarks on result:
- other: calculated from experimental values
- Temp.:
- 25 °C
- Vapour pressure:
- 317 Pa
- Remarks on result:
- other: calculated from experimental values
- Temp.:
- 50 °C
- Vapour pressure:
- 1 900.9 Pa
- Remarks on result:
- other: calculated from experimental values
- Temp.:
- 55 °C
- Vapour pressure:
- 2 632.2 Pa
- Conclusions:
- The vapour pressure of the test item is 213.57 Pa at 20 °C.
- Executive summary:
The vapor pressure of the test item was measured using the Knudsen effusion method (mass-loss technique), according to the
guidelines OECD 104 / EU A.4. The quality of the apparatus was previously verified with the measurement of well-known reference compounds. Experiments were performed at three temperatures between -19.77°C and -9.82°C. For every experiment (temperature), two effusion cells were used simultaneously. 2 different cells were used in the experiments, with effusion orifices of approx. 0,8 mm in diameter, with a thickness of 0.05 mm or 0.025 mm. Results permit the establishment of the relation between the vapor pressure of the compound and temperature, allowing the knowledge of the vapor pressure at different temperatures. Based on the results, the vapor pressure of the compound is calculated as being equal to 213.57 Pa at 20°C, and 317.00 Pa at 25°C.
Reference
Areas and transmission propability factors ot the effusion orifices used in the present work:
|
Description of key information
Benzyldimethylamine is characterized by a measured vapour pressure of 213.57 Pa (20 °C) (Bayer Technology Services, 2013).
Key value for chemical safety assessment
- Vapour pressure:
- 213.57 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.
