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Physical & Chemical properties

Surface tension

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Description of key information

Under the conditions of this study, the surface tension of 1.05 g/L aqueous dispersions of the test material in water has been determined to be 44.0 to 44.4 mN/m at 20.0 ± 0.5 °C. The test material was considered to be surface active.

Key value for chemical safety assessment

Surface tension:
44.2
in mN/m at 20°C and concentration in mg/L:
1 050

Additional information

The key study was conducted in line with GLP and the standardised guidelines OECD 115 and EU Method A.5. It was assigned a reliability score of 1 in accordance with the criteria detailed by Klimisch (1997).

The surface tension of the test material was determined using the ring method.

Two aqueous dispersions of the test material were prepared to carry out the determination in duplicate and the values obtained using a torsion balance for surface and interfacial tension measurements.

Under the conditions of this study, the surface tension of 1.05 g/L aqueous dispersions of the test material in water has been determined to be 44.0 to 44.4 mN/m at 20.0 ± 0.5 °C. The test material was considered to be surface active.