This section is from the "A Handbook of Useful Drugs" book, by State Medical Examining and Licensing Boards.
Properties : Potassium chlorate is explosive when mixed with oxidizable matter, and caution should be observed in manipulaing it. It occurs as colorless crystals or a white granular powder, odorless and having a cooling and characteristic taste. It is soluble in water (1:16), but nearly insoluble in alcohol.
Action and Uses: Potassium chlorate is astringent. Large doses are actively poisonous, causing disintegration of the blood-corpuscles. Potassium chlorate is much used as a mouth wash in various forms of stomatitis. It is also employed as a gargle in the treatment of pharyngitis. Its value in these conditions, however, is uncertain. Its internal use is not to be recommended.
Dosage: A saturated solution may be used as a mouth wash or gargle.