Sodium chlorite is a pale yellow, slightly cloudy liquid with a slight chlorine odor. It is corrosive and an oxidizer when dry and harmful if inhaled. It has a pH greater than 12, specific gravity of 1.2 and a concentration of 25%.
The main application of sodium chlorite is the generation of chlorine dioxide for bleaching and stripping of textiles, pulp and paper. It is also used for disinfection.