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Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: DIN EN 14370
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.5 (Surface Tension)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- plate method
- Key result
- Surface tension:
- 56.8 mN/m
- Temp.:
- 20 °C
- Conc.:
- 90 vol%
- Conclusions:
- The surface tension at 20 °C of a solution of the test item in demineralized water with a concentration corresponding to 90 % of the saturation solubility, was determined by the plate method using a tensiometer. The following result of 56.8 mN/m at 20 °C was received (Currenta, 2009). .
- Executive summary:
The surface tension at 20 °C of a solution of the test item in demineralized water with a concentration corresponding to 90 % of the saturation solubility, was determined by the plate method using a tensiometer. The following result of 56.8 mN/m at 20 °C was received (Currenta, 2009). .
Reference
RESULTS:
a) Surface tension of the substance at 25 °C: Due to the high viscosity of the test item, the test could not be done.
b) Surface tension of the mixture with 1 g/L test item diluted with demineralized water: 56.5 mN/m (mean value) **
** A large portion of the test item is not soluble in water. Therefore an accurate determination of the surface tension was not possible.
c) Surface tension at 20 °C of a solution of the test item in water with a concentration corresponding to 90 % of the saturation solubility: 56.8 mN/m (mean value)**
d) Demineralized water after filtration 72.0 mN/m (20 °C)
Description of key information
The surface tension at 20 °C of a solution of the test substance in demineralized water with a concentration corresponding to 90 % of the saturation solubility, was determined by the plate method using a tensiometer. The following result of 56.8 mN/m at 20 °C was received (Currenta, 2009). .
Key value for chemical safety assessment
- Surface tension:
- 56.8
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