Registration Dossier
Registration Dossier
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EC number: 289-997-3 | CAS number: 90063-39-1 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Ledum palustre, Ericaceae.
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015
- 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 was not checked before verifying the 500-mg rider during the calibration of the apparatus. As the verification of the accuracy of the balance was made the day before and a few days after and was in compliance with our quality criteria.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
Test material
- Reference substance name:
- Ledum palustre, extract
- EC Number:
- 289-997-3
- Cas Number:
- 90063-39-1
- Molecular formula:
- UVCB substance, not relevant.
- IUPAC Name:
- Ledum palustre, extract
- Test material form:
- liquid
- Details on test material:
- UVCB substance : see composition at section 1
Constituent 1
Results and discussion
Surface tension
- Key result
- Surface tension:
- >= 47.3 - <= 49.5 mN/m
- Temp.:
- 20.1 °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 20.1 °C was 58.1 mN/m ± 1.0 mN/m.
The test item was considered as surface-active in the experimental conditions used.
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