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Preparation of potassium iodate oxidation with potassium permanganate

flask of 500 ml dissolved in 250 ml hot water 10 g of potassium permanganate. The lower beaker, prepare a solution of 5 g of potassium iodide in distilled water and then pour it into a solution of potassium permanganate. Oxidation of iodide support by heating in a boiling water bath for about 30 minutes. Excess permanganate remove ethanol (violet color changes to brown). The mixture was filtered, the filtrate okyselíme acetic acid and thicken the water bath to crystallize. Crystals of potassium iodate strongly sucked on Büchner funnel, rinsed little ethanol and dried at 60 ° C. The filter may thicken again and get another portion of iodate.

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