Registration Dossier
Registration Dossier
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EC number: 619-508-4 | CAS number: 381209-09-2
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- November 15, 2010 - December 21, 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: This study has been performed according to OECD and/or EC guidelines and according to GLP principles.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guidelineopen allclose all
- 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:
- yes (incl. QA statement)
- Type of method:
- effusion method: by loss of weight or by trapping vaporisate
Test material
- Reference substance name:
- 1-(2-ethylbutyl)cyclohexane-1-carboxylic acid
- EC Number:
- 619-508-4
- Cas Number:
- 381209-09-2
- Molecular formula:
- C13 H24 O2
- IUPAC Name:
- 1-(2-ethylbutyl)cyclohexane-1-carboxylic acid
- Details on test material:
- - Name of test material (as cited in study report): CAT-Acid
- Stability under test conditions: stable
- Storage condition of test material: at room temperature in the dark
Constituent 1
Results and discussion
Vapour pressure
- Temp.:
- 20 °C
- Vapour pressure:
- <= 0.041 Pa
Any other information on results incl. tables
Extrapolation of the log vT vs. 1/T curve to 20°C resulted in a value of -5.51 for the log ¿T, 20 of the test substance. Fitting this value in the regression curve, a vapour pressure of 4.08 x 10-2 Pa = 3.06 x 10-4 mmHg was obtained. This value however is expected to be overestimated because the vapour pressure of molten material is higher than the vapour pressure of solid material. Vapour pressure of the test substance is therefore reported to be = 4.08 x 10-2 Pa = = 3.06 x 10-4 mmHg.
Applicant's summary and conclusion
- Conclusions:
- The isothermal thermogravimetric effusion method was chosen for the determination of the vapour pressure of the substance. The vapour pressure of the substance at 20°C (293K) was = 4.08 x 10E-2 Pa = = 3.06 x 10E-4 mm Hg.
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