Registration Dossier
Registration Dossier
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EC number: 457-470-9 | CAS number: 407-64-7
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2000
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: study performed under GLP and in accordance with Czechian testing methods (similar to OECD-/EU-testing guidelines)
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Data source
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 000
- Report date:
- 2000
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Method IV Vapor pressure (1.4.2 static method) Regulation of the Ministry of Environment of the Czech Republic No. 299/1998, Annex 1 (identical with Method A.4 of Directive 67/548/EEC).
- Deviations:
- no
- Principles of method if other than guideline:
- The calculation was performed by using the EPI-suite software v.4.10. The vapor pressure estimation is based on the mod. Grain method)
- GLP compliance:
- yes
- Type of method:
- static method
Test material
- Details on test material:
- - Name of test material (as cited in study report): 4-butyrobetain (BUBET)
- Molecular formula: C7H15NO2
- Molecular weight: 145.20 g/mol
- Physical state: colourless solution
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 20 °C
- Vapour pressure:
- 2 562.5 Pa
- Remarks on result:
- other: First vapour pressure; test performed with an aqueous solution of test item
- Temp.:
- 25 °C
- Vapour pressure:
- 3 031.3 Pa
- Remarks on result:
- other: Second vapour pressure; test performed with an aqueous solution of test item
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Remarks on result:
- other: Calculated value for pure material
Transition / decomposition
- Transition / decomposition:
- no
Applicant's summary and conclusion
- Conclusions:
- The vapor pressure of the aqueous solution was determined to be 2562.5 Pa at 20°C and 3031.3 Pa at 25°C. A vapor pressure of the solidified material could not be measured due to its high viscosity. An estimation of the vapor pressure for the pure material resulted in a value of 1.39E-005 Pa at 25°C.
- Executive summary:
The test was performed 2000 under GLP according to the Czechian testing method 1.4.2 (similar to method A.4 of Directive 67/548/EEC). The calculation was done in 2011 using the EPI-Suite software v4.10.
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