Encyclopedia of Practical Receipts and Processes

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To Obtain Perchloric Acid

Acid. It may be obtained from a concen- To finely powdered perchlorate of potassa •trated boiling solution of ferrocyanide of po- contained in a retort, add about its weight t : tassium, cooled out of contact with the air, and muristic acid added in excess. The mixture is then agitated with a little ether, which separates the acid; the latter is collected by filtration, and dried.

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