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Physical & Chemical properties

Surface tension

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Description of key information

The test substance at apparent test concentration of 90% of the saturation solubility in water shows corrected surface tension of 44.4 mN/m at 20ºC (± 0.1ºC) according to the OECD harmonised ring method (EU Method A.5).  As the surface tension is lower than 60 mN/m, the test substance should be regarded as a surface active material.

Key value for chemical safety assessment

Surface tension:
44.4
in mN/m at 20°C and concentration in mg/L:
50 400

Additional information

The surface tension was determined by the OECD harmonized ring method according to EU Method A.5 in 2010 by the Výzkumný ústav organických syntéz a.s (Štreit V). The test substance was dissolved in redistilled water. The age of the solution was 26-hours before the start of measurements. The test substance at apparent test concentration of 90% of the saturation solubility in water shows corrected surface tension of 44.4 mN/m at 20ºC (± 0.1ºC).