Registration Dossier
Registration Dossier
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EC number: 688-011-2 | CAS number: 1243654-79-6
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13th October 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies which did not affect the quality of relevant results.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Date of inspection: 13th - 22nd October 2009
- Type of method:
- ring method
Test material
- Reference substance name:
- Pellicier
- IUPAC Name:
- Pellicier
- Details on test material:
- Name: Pellicer
Lot No.: 01-09-17
Chemical name: L-Lysine,N2,N6-bis[N-(1-oxododecyl)-L-α(or γ)-glutamyl]-, sodium salt (1;?)
Appearance: White powder
Storage condition: Room temperature (15-25 °C), in the dark and protected from humidity (with desiccant)
Manufacture date: 17 January 2009
Expiry Date: 17 January 2011
Safety precautions: Routine safety and hygienic procedures sufficient to ensure personnel health and safety
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 35.2 mN/m
- Temp.:
- 20 °C
Any other information on results incl. tables
In order to describe the time dependence of the surface tension after transferring the solution to the measurement vessel, repeated measurements were carried out with increasing the equilibrium time. A constant surface tension was reached after about 74 sec.
The measured surface tension was multiplied by φa and then corrected according to Harkins and Jordan by 1.85 mN/m, resulting in a corrected surface tension of 35.2 mN/m. As the surface tension value was lower than 60 mN/m, Pellicer is classified as surface active.
Applicant's summary and conclusion
- Conclusions:
- The measured value was found to be 35.2 mN/m. As the surface tension value was lower than 60 mN/m, Pellicer is classified as surface active.
- Executive summary:
The determination of the surface tension was carried out on the test item as supplied by the sponsor, with the use of a Krüss K6 Tensiometer by ring method. The measured value was found to be 35.2 mN/m. As the surface tension value was lower than 60 mN/m, Pellicer is considered to be surface active.
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