Registration Dossier
Registration Dossier
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EC number: 806-984-5 | CAS number: 1392411-89-0
Surface tension
Administrative data
Link to relevant study record(s)
- Endpoint:
- surface tension
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 115 (Surface Tension of Aqueous Solutions)
- Deviations:
- no
- GLP compliance:
- not specified
- Type of method:
- ring method
- Key result
- Temp.:
- 20 °C
- Remarks on result:
- not determinable
- Remarks:
- The surface tension of highly viscous liquids (resins) cannot be measured.
- Conclusions:
- Under the study conditions, the surface tention of the substance could not be determined. Indeed, the surface tention of highly viscuous liquids (resins) cannot be measured.
- Executive summary:
A study was conducted to determine the surface tention of the substance according to OECD Guideline 115. The static surface tension of a liquid is determined according to the ring method using a K11 MK4 tensiometer of Krüss. A platinum-iridium (PtIr) ring with a diameter of ca. 2 cm is dipped into a vessel containing the liquid sample. The maximum force required to detach the ring from the liquid surface is measured by a sensitive torsion balance. The surface tension is then calculated. For reliable measurements, the viscosity of the liquids should be lower than 20-25 Pa*s. Hence, the surface tension of highly viscous liquids (resins) cannot be measured. In this case, aqueous solutions of a resin are prepared at 90% of its solubility limit when known. Otherwise, a saturated solution is prepared in deionized water. The results were reported in room temperature. Under the study conditions, the surface tention of the substance could not be determined. Indeed the surface tention of highly viscuous liquids (resins) cannot be measured (Leclercq, 2015).
Reference
Description of key information
The surface tension was determined according to OECD Guideline 115 (Leclerq, 2015).
Key value for chemical safety assessment
Additional information
The surface tension of highly viscous liquids (resins) cannot be measured.
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