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Physical & Chemical properties

Surface tension

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Description of key information

The surface tension range of isoheptane is 17 to 21 mN/m at 25 °C.

Key value for chemical safety assessment

Additional information

Surface tension is measured using a Wilhelmy plate. A range of 17 to 21 mN/m covers all possible grades within this substance description if measured with the agreed method. A test conducted by DHC (2010) using a Wilhelmy plate according to DIN 53914 demonstrates that the measured value of 20 mN/m at 25 °C falls within these borderline values.