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Physical & Chemical properties

Surface tension

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Description of key information

The surface tension of 3,3'-DDS at 90% of the test substance saturation solubility in water and at 20°C was 73.6 mN/m. According to this, the test substance is considered not to be surface active. According to read-across approach, we can consider 4,4-DDS as not to be surface active neither.

Key value for chemical safety assessment

Surface tension:

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