Used in activator,a mordant in painting and dying. Specifications1. zinc acetate 2.Cas no.:557-34-6 3.White crystal 4. ... Purity:99.5% min,99% min,98% min zinc acetate Cas no.: 557-34-6Technical Standard: NoItemSpecificationValue1Appearance White powderWhite powder2Assay ... %9PH of 5% Solution 25°C6.0-7.06.5 Zinc acetate trihydrate