Registration Dossier
Registration Dossier
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EC number: 201-469-6 | CAS number: 83-32-9
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: guidance followed, no GLP
Data source
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- static method
- Remarks:
- NF T 20-048 AFNOR Sept.85
Test material
- Reference substance name:
- Acenaphthene
- EC Number:
- 201-469-6
- EC Name:
- Acenaphthene
- Cas Number:
- 83-32-9
- Molecular formula:
- C12H10
- IUPAC Name:
- 1,2-dihydroacenaphthylene
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- ca. 100 °C
- Vapour pressure:
- ca. 880 Pa
- Remarks on result:
- other: measured value for high purity acenaphthene
- Temp.:
- ca. 120 °C
- Vapour pressure:
- ca. 1.96 kPa
- Remarks on result:
- other: measured value for acenaphthene
- Temp.:
- ca. 20 °C
- Vapour pressure:
- ca. 11.8 Pa
- Remarks on result:
- other: extrapolated value, out of scope - for high purity acenaphthene
- Temp.:
- ca. 20 °C
- Vapour pressure:
- ca. 14.8 Pa
- Remarks on result:
- other: extrapolated value, out of scope - acenaphthene
Transition / decomposition
- Transition / decomposition:
- yes
- Transition temp.:
- ca. 93.1 °C
- Vapour pressure at 10°C above transition temperature:
- 880 Pa
Any other information on results incl. tables
High purity acenaphthene:
Linear equation: log p = -2466.4*(1/T)+9.4847 Scope: from 100 to 275 °C
Accuracy: <10%
Nature of the change during measuring: none
Nature of the change for estimate: transition liquid-solid
Temperature of transition: 93,1°C
Acenapthene:
Linear equation: log p = -2422.1*(1/T)+9.4326 Scope: from 95 to
Accuracy: <10%
Nature of the change during measuring: none
Nature of the change for estimate: transition liquid-solid
Temperature of transition: 66,2°C
Applicant's summary and conclusion
- Conclusions:
- The real value for 20°C should be 100x less than extrapolated value, due to transition liquid-solid
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