Saltpeter

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99.8% Pure Saltpeter Powder Saltpeter is a chemical compound with the chemical formula KNO3. A naturally occurring mineral source of nitrogen, KNO3 constitutes a critical oxidizing component . In the past it was also used for several kinds of burning fuses, including slow matches. Used for fertilizer, anaphrodisiac, amateur rocketry, fireworks, food preservatives & more. Show more