ClO3-. A very reactive inorganic anion. The term
chlorate can also be used to describe any compound containing the chlorate ion,
normally chlorate salts (e.g. potassium chlorate, KClO3). The
chlorate ion is a natural breakdown product of chlorine dioxide (e.g. by
sunlight or in water).
Source: GreenFacts
More:
The chlorate ion is a water disinfection byproduct found in drinking water
when chlorine dioxide or hypochlorite (a type of chlorine disinfectant) are used
as disinfectant.
