Registration Dossier
Registration Dossier
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EC number: 236-124-9 | CAS number: 13177-41-8
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:
- 2 021
- Report date:
- 2021
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- no
- Type of method:
- plate method
Test material
- Reference substance name:
- Dimethyloctadecyl(3-sulphopropyl)ammonium hydroxide
- EC Number:
- 236-124-9
- EC Name:
- Dimethyloctadecyl(3-sulphopropyl)ammonium hydroxide
- Cas Number:
- 13177-41-8
- Molecular formula:
- C23H49NO3S
- IUPAC Name:
- dimethyl(octadecyl)(3-sulfopropyl)azanium hydroxide
- Test material form:
- solid
1
Results and discussion
Surface tension
- Surface tension:
- > 69.04 - < 70.52 mN/m
- Temp.:
- 20 °C
- Conc.:
- 5.32 mg/L
Any other information on results incl. tables
Test concentration was determined with TOC analysis, due to limited water solubility.
During the specified period of time, no significant changes in the surface tension were detected. Values ranging from 69.04 mN/m to 70.52 mN/m were recorded showing no significant variations. The values of the single determinations show no significant difference (less than 5 % (1.11%) between mean values of the two-measurement series).
Applicant's summary and conclusion
- Conclusions:
- The determined surface tension of the test substance is higher than 60 mN/m. Therefore, the test substance can be classified as not surface active.
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