Zinc reacts with the zincon reagent to form a brownish-green to blue complex in a solution buffered at alkaline pH.

Since other metals can form colored complexes with zincon, cyanide is added to complex zinc and any other heavy metal present. Then, cyclohexanone is added to selectively free zinc from its cyanide complex so that it can react with zincon to form the final blue colored product. The amount of color developed is proportional to the concentration of zinc present in the aqueous sample.

Order Information:
HI 3854 test kit comes with 100 packets zinc reagent A, 60 mL zinc reagent B (2), color comparison cube, 10 mL glass cuvette with HDPE stopper, 1 mL syringe, 20 mL calibrated vessel and plastic spoon.

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