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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 606-682-1 | CAS number: 2098-65-9
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Jan 1997
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
- Report date:
- 1997
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 92/69 EEC from 1992-07-31
- GLP compliance:
- yes
- Type of method:
- effusion method: Knudsen cell
Test material
- Reference substance name:
- 17-Hydroxy-1 alpha,2 alpha-methylene-4,6-pregnadiene-3,20-dione
- EC Number:
- 606-682-1
- Cas Number:
- 2098-65-9
- Molecular formula:
- C22 H28 O3
- IUPAC Name:
- 17-Hydroxy-1 alpha,2 alpha-methylene-4,6-pregnadiene-3,20-dione
- Test material form:
- solid: bulk
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Key result
- Test no.:
- #1
- Temp.:
- 30 °C
- Vapour pressure:
- 0 Pa
- Key result
- Test no.:
- #1
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 0 Pa
Applicant's summary and conclusion
- Conclusions:
- The temperature dependence of the vapour pressure was determined with the Knudsen effusion method using a vapour pressure balance in the temperature range 120-160 °C. The following vapour pressures were calculated tor 20, 25 and 30°C using a semilogarithmic linear regression based on the Antoin equation to be (with 95 %confidence intervall) :
P20 = 2.1 x 10-9 Pa (4.2x10-10 - 1.0x10-8 Pa)
P25 = 4.9 x 10-9 Pa (1.1x10-9 - 2.2x10-8 Pa)
P30 = 1.1 x 10-8 Pa (2.7x10-9 - 4.6x10-8 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.
