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    Iodic acid - Wikipedia

    • Iodic acid is a white water-soluble solid with the chemical formula HIO3. Its robustness contrasts with the instability of chloric acid and bromic acid. Iodic acid features iodine in the oxidation state +5 and is one of the most stable oxo-acids of the halogens. When heated, samples dehydrate to give iodine pentoxide. On further heating, the iodine pentoxide further decompos… 展开

    Preparation

    Iodic acid can be produced by oxidizing iodine with strong oxidizers such as nitric acid, chlorine, chloric … 展开

    Structure

    Iodic acid crystallises from acidic solution as orthorhombic α-HIO 3 in space group P212121. The structure consists of pyramidal molecules linked by hydrogen bonding and intermolecular iodine-oxygen interactions. Th… 展开

    Properties

    Iodic acid is a relatively strong acid with a pKa of 0.75. It is strongly oxidizing in acidic solution, less so in basic solution. When iodic acid acts as oxidizer, then the product of the reaction is either iodine, or iodide ion. Under some spe… 展开

    Uses

    Iodic acid is used as a strong acid in analytical chemistry. It may be used to standardize solutions of both weak and strong bases, using methyl red or methyl orange as the indicator. 展开

    Use in salt industry

    Iodic acid can be used to synthesize sodium or potassium iodate for increasing iodine content of salt. 展开