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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 807-448-3 | 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- yes
- Remarks:
- Results taken by direct measurement not linear regression
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- yes
- Remarks:
- As above
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
- Specific details on test material used for the study:
- STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: room temperature, in the dark - Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.021 Pa
- Key result
- Temp.:
- 65 °C
- Vapour pressure:
- 0.65 Pa
- Transition / decomposition:
- no
- Conclusions:
- The vapour pressure of the test material was assessed in accordance with OECD Guideline 104 and was determined to be 2.1E-02 Pa at 25°C and 0.65 Pa at 65°C.
- Executive summary:
Test Guidance
The vapour pressure was determined using a vapour pressure balance. Testing was conducted using a procedure designed to be
compatible with Method A4 Vapour Pressure of Commissions Regulation (EC) No. 440/2208 of 30 May 2008 and Method 104
of the OECD Guidelines for Testing of Chemicals, 23 March 2006
Method
The vapour pressure was determined using a vapour pressure balance, the temperature of the sample was controlled electronically. The mass and temperature reading were recorded automatically as a computer file.
A preliminary run was undertaken, in two runs due to an instrument error, that covered the temperature range 20 to 158°C to provide information for the definitive determinations.
Two definitive sequences of runs were started after the sample of test item had been under vacuum for approximately 87¾ and 215¼ hours for the determinations at 25°C and 65°C respectively. Temperature and pressure readings were taken between 20 to 30 °C and 60 to 70°C both in 1°C steps with a one hour dwell at the lower temperature for direct measurements at 25°C and 65°C respectively.
The study results were taken from direct measurements at 25°C and 65°C and not via linear regression. This approach had no impact on the study outcome.
Result
The vapour pressure was found to be 2.1E- 02 Pa at 25°C and 0.65Pa at 65°C
Reference
Description of key information
The vapour pressure of the test material was assessed in accordance with OECD Guideline 104 and was determined to be 2.1E-02 Pa at 25°C and 0.65 Pa at 65°C.
Key value for chemical safety assessment
- Vapour pressure:
- 0.021 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.
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.
