Potassium bromate, KBrO₃

The Potassium bromate, KBrO₃, is formed by the interaction of bromine and concentrated potassium hydroxide, or by the electrolytic oxidation of the bromide. The hexagonal crystals melt at 434° C., their mean density being 3.27. The heat of formation from the elements is given as 84.06 Cal. and 84-3 Cal. The solubility at 20° C. is 6.9 grams per 100 grams of water. When heated above its melting-point, KBrO₃ is decomposed into the bromide and oxygen.