Registration Dossier
Registration Dossier
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EC number: 282-490-8 | CAS number: 84238-29-9 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Vetiveria zizanioides, Gramineae.
Surface tension
Administrative data
- Endpoint:
- surface tension
- 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:
- 2 010
- Report date:
- 2010
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
Test material
- 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
- Lot/batch No.: ADL 53 901
- Expiration date of the lot/batch: 04 January 2011
- Stability under test conditions: stable
- Storage condition of test material: At room temperature in the dark
- Other: -
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 57.4 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 vol%
Any other information on results incl. tables
Table 3 Surface tension of the test substance
Test |
Volume [μl] |
Self-ignition temperature [°C] |
Observations |
Colour of the flame |
Ignition delay [s] |
1 |
70 70 |
200 300 |
- |
- |
- |
2 |
70 70 |
200 300 |
Flame Flame |
orange/yellow orange/yellow |
14 14 |
Applicant's summary and conclusion
- Conclusions:
- The OECD harmonized ring method was used for the determination of the surface tension of Vetiveria zizanioides, ext.. The surface tension of a test solution at 90% of the test substance saturation solubility in water and at 20°C was 57.4 mN/m. According to this, the test substance is considered to be surface active.
- Executive summary:
The OECD harmonized ring method was used for the determination of the surface tension of Vetiveria zizanioides, ext.. The surface tension of a test solution at 90% of the test substance saturation solubility in water and at 20°C was 57.4 mN/m. According to this, the test substance is considered to be surface active.
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