Registration Dossier
Registration Dossier
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EC number: 283-949-5 | CAS number: 84776-23-8 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Calendula officinalis, Compositae.
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- yes
- Remarks:
- The balance with an accuracy of 0.01 mg was not checked before the calibration of the surface tension apparatus.This deviation was not considered to have affected the quality or the interpretation of the results obtained.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
Test material
- Reference substance name:
- Calendula officinalis, ext.
- EC Number:
- 283-949-5
- EC Name:
- Calendula officinalis, ext.
- Cas Number:
- 84776-23-8
- Molecular formula:
- UVCB substance, not relevant.
- IUPAC Name:
- Calendula officinalis, ext.
- Test material form:
- liquid
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- >= 47.3 - <= 49.5 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Remarks on result:
- other:
- Remarks:
- The mean surface tension of the test item at 1 g/L in distilled water at 20.0 °C was 48.4 mN/m ± 1.1 mN/m. The test item was considered as surface-active in the experimental conditions used.
Applicant's summary and conclusion
- Conclusions:
- The mean surface tension of the test item at 1 g/L in distilled water at 20.0 °C was 48.4 mN/m ± 1.1 mN/m.
The test item was considered as surface-active in the experimental conditions used.
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