Registration Dossier
Registration Dossier
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EC number: 700-774-6 | CAS number: -
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 25.-28. July 2011
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study performed according to OECD/EU testing guideline, but not GLP
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)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- ring method
Test material
- Reference substance name:
- Absorbent N grade A
- IUPAC Name:
- Absorbent N grade A
- Details on test material:
- - Name of test material (as cited in study report): Absorbent N grade A
- Substance type: UVCB
- Physical state: Brown liquid
- Stability under test conditions: months
- Storage condition of test material: room temperature, in the dark
Constituent 1
Results and discussion
Surface tension
- Surface tension:
- 60.2 mN/m
- Temp.:
- 20 °C
Any other information on results incl. tables
Individual Results
The water solubility was stated to be 0.5 g/l. Therefore a solution of 0.1006 g in 200 ml water was prepared. The solution was stirred at room temperature for 69 h. Subsequently the solution was filtered and diluted to 90 % (the test item was not completely solved at the end of the stirring time). The measurement of thesurface tension with the test itemwas carried out at 20 ±0.5°C.
Measurement |
1 |
2 |
3 |
4 |
5 |
6 |
Time (s) |
26 |
86 |
147 |
208 |
268 |
329 |
s(mN/m) |
60.30 |
60.29 |
60.26 |
60.27 |
60.10 |
60.10 |
Mean value: sigma = 60.22 mN/m (corrected by Zuidema and Waters)
Due to the fact that the surface tension is higher than 60 mN/m, the test item has no surface-active properties.Applicant's summary and conclusion
- Conclusions:
- The surface tension of the aqueous solution at 20 °C is sigma = 60.2 mN/m. The test item has no surface-active properties.
- Executive summary:
Mean value: sigma = 60.22 mN/m (corrected by Zuidema and Waters)
Due to the fact that the surface tension is higher than 60 mN/m, the test item has no surface-active properties.
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