Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
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:
- Experimental phase: 16 November 2016.
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- The test method used a Traube stalagmometer. The principle of the method is to measure the weight of drops of a fluid falling from a capillary glass tube and thereby calculate the surface tension of the fluid. The weight of the falling drops can be determined by counting them.
- GLP compliance:
- no
- Type of method:
- other: Traube stalagmometer
- Key result
- Surface tension:
- 53 mN/m
- Temp.:
- 20 °C
- Conc.:
- 1 g/L
- Key result
- Surface tension:
- 56 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.5 g/L
- Key result
- Surface tension:
- 59 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.25 g/L
- Key result
- Surface tension:
- 63 mN/m
- Temp.:
- 20 °C
- Conc.:
- 0.125 g/L
- Conclusions:
- The mean surface tension of the test substance is 58 mN/m at 20 °C.
- Executive summary:
Introduction
The surface tension of the test substance was determined using a Traube stalagmometer.
Method
Four concentrations of solutions were prepared by diluting test substance in distilled water and the surface tension of each dilution measured. The concentrations assessed were: 0.125, 0.25, 0.5 and 1 g/L.
Results
Concentration (g/L) Surface Tension (mN/m) 1.0 53 0.5 56 0.25 59 0.125 63 Conclusion
The mean surface tension of the test substance is 58 mN/m at 20 °C.
Reference
The mean surface tension of the test substance is 58 mN/m at 20 °C.
Description of key information
Surface tension of the substance.
Key value for chemical safety assessment
- Surface tension:
- 58
Additional information
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