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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
30 March 2010 – 28 May 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: This study has been performed according to OECD and EC guidelines and according to GLP principles.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

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

Constituent 1
Reference substance name:
Vetiveria zizanioides, ext.
EC Number:
282-490-8
EC Name:
Vetiveria zizanioides, ext.
Cas Number:
84238-29-9
Molecular formula:
Not available due to the UVCB nature of the substance
IUPAC Name:
Essential oil of Vetiveria zizanioides (Poaceaes)
Details on test material:
- Name of test material (as cited in study report): Vetiveria zizanioides, ext.
- Substance type: Clear brown liquid
- Physical state: liquid
- Analytical purity: treated as 100% pure
- Stability under test conditions: stable
- Storage condition of test material: At room temperature in the dark
- Other: -

Results and discussion

Vapour pressure
Temp.:
20 °C
Vapour pressure:
1.52 Pa

Applicant's summary and conclusion

Conclusions:
The isothermal thermogravimetric effusion method was chosen for the determination of the vapour pressure of Vetiveria zizanioides, ext.. The vapour pressure of the test substance at 20°C (293K) was 1.52 Pa = 1.14 x 10^-2 mm Hg.
Executive summary:

The isothermal thermogravimetric effusion method was chosen for the determination of the vapour pressure of Vetiveria zizanioides, ext.. The vapour pressure of the test substance at 20°C (293K) was 1.52 Pa = 1.14 x 10^-2 mm Hg.

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