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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 946-997-4 | CAS number: -
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 12 April 2016 to 13 April 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 2009
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Version / remarks:
- 1996
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: isothermal thermogravimetry
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Test material form:
- solid: particulate/powder
- Details on test material:
- - Appearance: yellow/brown powder
- Storage conditions: in refrigerator (2-8°C)
- Specific details on test material used for the study:
- reaction and/or decomposition at > 225°C
Results and discussion
Vapour pressureopen allclose all
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- < 0 Pa
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- < 0 Pa
Any other information on results incl. tables
From the start of the study untill ca. 150 minutes a weight loss was observed due to evaporation of impurities in the substance.
The log PT versus 1/T (T in K) curve for the substance over the range 170 -200°C showed poor linearity (correlation coefficient r < 0.99). Extrapolation of the curve to 20°C or 25°C would not give reliable results.
Since the weight losses of the test item at 170°C, 180°C, 190°C and 200°C were lower than the weight losses of chrysene at the same temperatures, it was concluded that the vapour pressure of the substance at 20°C (25°C) is lower than the vapour pressure of chrysene at 20°C (25°C).
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure of the substance at 25°C was determined to be < 2.0E-06 Pa.
The vapour pressure of the substance at 20°C was determined to be < 8.4E-07 Pa. - Executive summary:
The vapour pressure of the substance was determined using the isothermal thermogravimetric effusion method in a GLP study according to EC A.4, OECD 104 and OPPTS 830.7950. The vapour pressure of the substance at 20°C (25°C) could not be determined by aid of a log pT vs 1/T curve. From the measured weight losses, the vapour pressure of the substance was concluded to be lower than the vapour pressure of reference substance Chrysene at 20°C (25°C). The vapour pressure of the substance at 25°C was determined to be < 2.0E-06 Pa. The vapour pressure of the substance at 20°C was determined to be < 8.4E-07 Pa.
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.
