What Is Iodic Acid?

Iodic acid has the molecular formula of HIO3. It has a molecular weight of 175.9 grams/mole and exists as a white solid at room temperature. The compound is a very strong acid and is often utilized to standardize solutions of weak and strong bases to prepare them for titrations.

Iodic acid exists in its pure state as a white solid. It is highly soluble in water and completely dissociates in aqueous solutions. The acid is formed by oxidizing diatomic iodine with nitric acid, chlorine, chloric acid or hydrogen peroxide. In each reaction, the diatomic iodine loses electrons and forms a complex with hydrogen and oxygen. Due to its ionic and soluble properties, ionic acid is also a very strong acid and has a pKa value of 0.75.