Registration Dossier
Registration Dossier
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EC number: 203-927-0 | CAS number: 112-00-5
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
Data source
Reference
- Reference Type:
- publication
- Title:
- Interfacial properties of antimicrobial long-chain quaternary ammonium salts I
- Author:
- Norman D. Weiner and George Zografi
- Year:
- 1 965
- Bibliographic source:
- Journal of pharmaceutical sciences
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The drop volume method is used instead.
- Type of method:
- other: Drop volume method
Test material
- Reference substance name:
- Dodecyltrimethylammonium chloride
- EC Number:
- 203-927-0
- EC Name:
- Dodecyltrimethylammonium chloride
- Cas Number:
- 112-00-5
- Molecular formula:
- C15H34N.Cl
- IUPAC Name:
- N,N,N-trimethyldodecan-1-aminium chloride
- Test material form:
- liquid
- Details on test material:
- Obtained from the reaction between methyl chloride and N,N dimethyldodecylamine.
Constituent 1
Results and discussion
Surface tensionopen allclose all
- Key result
- Surface tension:
- ca. 0.86 N/m
- Temp.:
- 25 °C
- Conc.:
- 52.78 g/L
- Surface tension:
- ca. 1.71 N/m
- Temp.:
- 25 °C
- Conc.:
- 105.56 g/L
Applicant's summary and conclusion
- Conclusions:
- Surface tension at the CMC (0,2 mol/L or 52,78 g/L) = 0,86 N/m at 25°C
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