Registration Dossier
Registration Dossier
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Dodeca (lithium, sodium)-2-({4-[4-(4-{bis[alkyl-(sulfonatoalkoxy)-4-({-sulfonato-[(substituted-phenyl)diazenyl]phenyl} diazenyl)anilino]-triazin-yl}-6-[alkyl-(sulfonatoalkoxy)-4-(sulfonato--[(substituted-phenyl)diazenyl]phenyl)diazenyl)anilino]piperazin-yl)-triazin-ylamino]-alkyl-5-(sulfonatoalkoxy)phenyl}diazenyl)-5-[(sulfonatophenyl)diazenyl]benzensulfonate
EC number: - | CAS number: -
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 11 February 2011 – 04 May 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: This study has been performed according to OECD and EC guidelines and in compliance with GLP principles.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- (1995)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- (Official Journal of the European Union no. L142, May 31, 2008)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- OECD harmonised ring method
Test material
Reference
- Name:
- Unnamed
- Type:
- Constituent
- Details on test material:
- - Name of test material (as cited in study report): E-BW102
- Description: Reddish brown powder
- Batch: MB-1
- Test substance storage: At room temperature protected from light
- Stability under storage conditions: Stable
- Expiry date: 23 December 2015
Results and discussion
Surface tension
- Surface tension:
- 74.9 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
Any other information on results incl. tables
The calibration factor (Φb) was calculated to be 1.01.
Details on the results of the test on the determination of the surface tension of the test solution are given in the table below:
Measurement
|
Time passed [minutes]
|
Surface tension [mN/m] |
||
individual
|
mean
|
mean multiplied by Φband Harkins-Jordan corrected value |
||
1 2 3 4 5
|
20 21 22 23 24 |
74.3 74.2 74.2 74.1 74.2 |
74.2
|
74.9
|
Applicant's summary and conclusion
- Conclusions:
- The OECD harmonized ring method was applied for the determination of the surface tension of E-BW102. The surface tension of a test solution at a concentration of 1 g/l and at 20°C was 74.9 mN/m. As this value is well above the cut-off value for surface active materials (< 60 mN/m), the test substance is considered not to be surface active.
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