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Surface tension

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Description of key information

The test material is considered not to be a surface-active material.

Key value for chemical safety assessment

Surface tension:
68.7
in mN/m at 20°C and concentration in mg/L:
0.025

Additional information

The surface tension of a 0.0251 g/l solution of DVB-HP has been determined to be 68.7 mN/m at 20°C. The test material is considered not to be a surface-active material.

In accordance with Column 2 of REACh Annex VII, the measurment of surface tension needs to be performed if, based on structure, surface activity is expected or can be predicted; or if surface activity is a desired property of the material. As no surface-activity has been observed with DVB-HP, no such activity is expected with the other grades of the reaction mass of divinylbenzene and ethylstyrene.

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