Chemistry:Schultze reagent

Schultze reagent (also known as Chlor-Zinc-Iodine Solution) is an oxidizing mixture consisting of a saturated aqueous solution of potassium chlorate KClO₃ and varying amounts of concentrated nitric acid HNO₃. It is commonly used in palynologic macerations. It was invented by Max Schultze. It is used to determine whether a substance contains cellulose, by turning purple in its presence. It is corrosive and an environmental hazard.