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Physical & Chemical properties

Surface tension

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surface tension
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because based on structure, surface activity is not expected or cannot be predicted

Description of key information

Not applicable.

Key value for chemical safety assessment

Additional information

In accordance with column 2 of REACH Regulation (EC) No 1907/2006, Annex VII, the determination of surface tension (required in section 7.6) only needs to be conducted if based on structure of the substance surface activity can be predicted. Based on the structure of 1,1'-(1,1,2,2-tetramethylethylene)dibenzene, no surface activity can be predicted and consequently no testing is required (Ref.: R.7a: Guidance on information requirements and chemical safety assessment, EU-Document (2012)). In addition, the substance is insoluble in water (water solubility = 0.08 mg/L). Thus, determination of the surface activity is technically not feasible.