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Physical & Chemical properties

Surface tension

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Description of key information

The surface tension of the test material was determined using the OECD 115 method. The ring method was implemented on an aqueous solution of 1 g/L (viscosity<200 mPa.s). Three determinations were carried out at 20°C. 
The surface tension was calculated to be 61.30 ± 0.40 mN/m. Considering that distilled water has a surface tension of 72.75mN/m at 20°C, substances showing a surface tension lower than 60mN/m under conditions of this method should be regarded as being surface-active materials. With a value just above 60 mN/m, the test item is not considered to have surface active properties.

Key value for chemical safety assessment

Surface tension:
61.3
in mN/m at 20°C and concentration in mg/L:
1 000

Additional information

With a value just above 60 mN/m, the test item is not considered to have surface active properties.