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EC number: - | CAS number: -
Surface tension
Administrative data
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 13 March 2017 to 14 March 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- OECD harmonised ring method
Test material
- Reference substance name:
- 1,3,5-tris(5-isocyanatopentyl)-1,3,5-triazinane-2,4,6-trione
- Cas Number:
- 119934-71-3
- Molecular formula:
- C21 H30 N6 O6
- IUPAC Name:
- 1,3,5-tris(5-isocyanatopentyl)-1,3,5-triazinane-2,4,6-trione
- Reference substance name:
- 2-methylpropyl N-(5-isocyanatopentyl)-N-(5-isocyanatopentylcarbamoyl)carbamate
- Molecular formula:
- C18 H30 N4 O5
- IUPAC Name:
- 2-methylpropyl N-(5-isocyanatopentyl)-N-(5-isocyanatopentylcarbamoyl)carbamate
- Test material form:
- liquid: viscous
- Details on test material:
- Appearance: colourless or light yellow viscous liquid
Storage conditions: at room temperature, container tightly closed, flushed with nitrogen.
Constituent 1
Constituent 2
Results and discussion
Surface tension
- Key result
- Surface tension:
- 72.5 mN/m
- Temp.:
- 20 °C
- Remarks on result:
- other: Conc.= 90% of saturation solubility
Any other information on results incl. tables
Table: Surface tension measurements
| Measurement | Time passed after transfer test solution to test vessel [minutes] | Surface tension [mN/m] | ||
| individual | mean (1) | mean (2) | ||
| 1 | 15 | 75.0 | 74.0 | 72.5 |
| 2 | 16 | 74.2 | ||
| 3 | 17 | 74.0 | ||
| 4 | 18 | 74.1 | ||
| 5 | 18 | 74.0 | ||
| 6 | 19 | 73.9 | ||
(1) Mean calculated from measurements 2 to 6, after equilibrium was reached.
(2) Multiplied by the calibration factor and Harkins-Jordan correction.
Applicant's summary and conclusion
- Conclusions:
- The surface tension of an aqueous solution of the substance at 90% of its saturation solubility was determined to be 72.5 mN/m (at 20°C).
- Executive summary:
Using the OECD harmonized ring method in a GLP study according to EC A.5 and OECD 115, the surface tension of an aqueous solution of the substance at 90% of its saturation solubility was determined to be 72.5 mN/m (at 20°C). According to the EC A.5 guideline the substance is not surface active.
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