Characteristic

Potassium periodate is an inorganic salt with the molecular formula KIO₄. It is composed of a potassium cation and a periodate anion and may also be regarded as the potassium salt of periodic acid. 

Chemical formula：KIO₄

Molar mass：230.00 g mol⁻¹

Appearance：white crystalline powder

Odor：odourless

Density：3.618 g/cm³

Melting point：582 °C (1,080 °F; 855 K) (decomposes)

Solubility in water：0.17 g/100 mL (0 °C)

                                  0.42 g/100 mL (20 °C)

                                  4.44 g/100 mL (80 °C)

                                  7.87 g/100 mL (100 °C)

Crystal structure：tetragonal

Application

Used as an oxidant; Oxidants of organic compounds. Common reagent.