Potassium perchlorate is the inorganic salt with the chemical formula KClO4. Like other perchlorates, this salt is a strong oxidizer and potentially reacts with many organic substances. This usually obtained as a colorless, crystalline solid is a common oxidizer used in fireworks, ammunition percussion caps, explosive primers, and is used variousl... Found on http://en.wikipedia.org/wiki/Potassium_perchlorate
KClO4;occasionally used, as an alternative to a thiouracil derivative, in the control of hyperthyroidism. ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973