Registration Dossier
Registration Dossier
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EC number: 445-040-3 | CAS number: 577954-20-2
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:
- Study completion date - 11 September 2003.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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:
- other: Modified Watson Correlation
- Specific details on test material used for the study:
- Identity: FAT 40812/A
Batch: WP 8/03
Appearance: Solid, dark red-brownish powder
Expiration date: 23 April 2010
Storage: At room temperature at about 20 °C - Test no.:
- #1
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: Sulphuric acid component
- Test no.:
- #2
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: Vinyl sulfon component
- Conclusions:
- The vapour pressure of the two main components of the test substance were estimated to be 9.8E-25 Pa and 1.7E-24 Pa at 25 °C.
- Executive summary:
In a study performed according to EC Method A.4, the vapour pressure of the test substance was determined by calculation. The test substance consists of two main components and for both the vapour pressure was calculated using the Modified Watson Correlation. This vapour pressure calculation was based on the calculated boiling point using the Meissner's method to be 9.8E-25 Pa and 1.7E-24 Pa at 25 °C for sulfuric acid and vinyl sulfon component, respectively.
Reference
The boiling points of FAT 40812 were calculated to be about 751 °C for the first main component and about 755 °C for the second main component using Meissner's method. The vapour pressure of FAT 40812, acidic form of the molecule, was estimated to be 9.8E-25 Pa at 25 °C for the sulphuric acid ester component and 1.7E-24 Pa for the vinyl sulfon component.
Description of key information
In a study performed according to EC Method A.4, the vapour pressure of the test substance was determined by calculation. The test substance consists of two main components and for both the vapour pressure was calculated using the Modified Watson Correlation. The vapour pressure calculation was based on the calculated boiling point using the Meissner's method to be 9.8E-25 Pa and 1.7E-24 Pa at 25 °C for sulfuric acid and vinyl sulfon component, respectively.
Key value for chemical safety assessment
- Vapour pressure:
- 0 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.
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