Registration Dossier
Registration Dossier
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EC number: 923-418-3 | CAS number: -
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The determination of vapour pressure follows the OCDE guideline, the test was realised under GLP compliance. No deviation from the guideline were stated.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- 2007-01-12
- Type of method:
- effusion method: by loss of weight or by trapping vaporisate
Test material
- Reference substance name:
- acetalization product between glucose and C14 alcohol
- EC Number:
- 923-418-3
- IUPAC Name:
- acetalization product between glucose and C14 alcohol
- Details on test material:
- Test item: batch no.T82925
Appearence: white pellets
storage: at room temperature 20 +/- 5°C, dark
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- ca. 20 °C
- Vapour pressure:
- ca. 0.003 Pa
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. 0.006 Pa
Applicant's summary and conclusion
- Conclusions:
- The test item has a calculated vapour pressure:
2.90E-03 Pa at 20°C
6.1E-03 Pa at 25°C - Executive summary:
Introduction
Dtermination of the vapour pressure of the test item was done according to OCDE 104 resp. EU A.4.
Method
The method is based on the estimation of the mass of test substance flowing out per unit of time of a Knudsen cell in the form of vapour, through a micro-orifice under ultra-vacuum conditions. The mass of effused vapour can be obtained either by determining the loss of mass of the cell or by condensing the vapour at low temperature and determining the amount of volatilized substance using chromatography. The vapour pressure is calculated by applying the Hertz-Knudsen relation with correction factors that depend on parameters of the apparatus.
Conclusion
The test item has a calculated vapour pressure:
2.90E-03 Pa at 20°C
6.1E-03 Pa at 25°C
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