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Physical & Chemical properties

Surface tension

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Description of key information

In accordance with column 2 of Annex VII of the REACH regulation, the study need only be conducted if surface activity is a desired property of the chemical. The chemical Disodium 5,5'-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate (Common Name: Indigotindisulfonate sodium) is widely used as a Color additive to foods and dietary supplements; diagnostic aid dye and industrial dye. For these uses, surface activity is not an important property. Hence this study was considered for waiver.

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Additional information

In accordance with column 2 of Annex VII of the REACH regulation, the study need only be conducted if surface activity is a desired property of the chemical. The chemical Disodium 5,5'-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate (Common Name: Indigotindisulfonate sodium) is widely used as a Color additive to foods and dietary supplements; diagnostic aid dye and industrial dye. For these uses, surface activity is not an important property. Hence this study was considered for waiver.