Potassium perchlorate

Potassium Perchlorate

Potassium perchlorate

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Description:
Potassium perchlorate is the inorganic salt with the chemical formula KClO<sub>4</sub>. 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 variously in propellants, flash compositions, stars, and sparklers. It has been used as a solid rocket propellant, although in that application it has mostly been replaced by the higher performance ammonium perchlorate. KClO<sub>4</sub> has the lowest solubility of the alkali metal perchlorates (1.5 g in 100 mL of water at 25 °C).

Production

KClO<sub>4</sub> is prepared industrially by treating an aqueous solution of sodium perchlorate with KCl. This single precipitation reaction exploits the low solubility of KClO<sub>4</sub>, which is about 100 times less than the solubility of NaClO<sub>4</sub> (209.6 g/100 mL at 25 °C).

Oxidizing properties

KClO<sub>4</sub> is an oxidizer in the sense that it exothermically transfers oxygen to combustible materials, greatly increasing their rate of combustion...
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