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Physical & Chemical properties

Surface tension

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Reference
Endpoint:
surface tension
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011-12-07 - 2012-08-31
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The GLP study was conducted according to an internationally accepted guideline. All study parameters are given in detail.
Qualifier:
according to
Guideline:
OECD Guideline 115 (Surface Tension of Aqueous Solutions)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
plate method
Key result
Surface tension:
62.26 mN/m
Temp.:
20.2 °C
Conc.:
56.59 mg/L
Conclusions:
An aqueous solution of the test item Ukanol FR 70 was prepared for the test. The concentration of this solution was determined using HPLC analysis with 56.59 mg/L.

The surface tension of the solution was determined as 62.26 mN/m at 20.2 °C. This value was measured at equilibrium after approx. two hours. The measured values in equilibrium were higher than 60 mN/m, therefore, the test item Ukanol FR was classified as not surface active.
Executive summary:

The surface tension of an aqueous solution of Ukanol FR 70 was determined according to OECD test method 115 (plate method).

An aqueous solution of the test item Ukanol FR 70 was prepared for the test. The concentration of this solution was determined using HPLC analysis with 56.59 mg/L. The surface tension of the solution was determined as 62.26 mN/m at 20.2 °C. This value was measured at equilibrium after approx. two hours. The measured values in equilibrium were higher than 60 mN/m, therefore, the test item Ukanol FR was classified as not surface active.

Description of key information

An aqueous solution of the test item Ukanol FR 70 was prepared for the test. The concentration of this solution was determined using HPLC analysis with 56.59 mg/L.

The surface tension of the solution was determined as 62.26 mN/m at 20.2 °C.

The measured values in equilibrium were higher than 60 mN/m, therefore, the test item Ukanol FR was classified as not surface active.

Key value for chemical safety assessment

Surface tension:
62.26
in mN/m at 20°C and concentration in mg/L:
56.59

Additional information