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Buy potassium cyanide 99.98% purity online. no prescription needed( Liquid, powder and pills)Health - Beauty - all city (District of Columbia) - February 24, 2022We manufacture and distribute Potassium Cyanide which is a colorless crystalline compound with the formula KCN .Our potassium cyanide is known by jewelry dealers for it's extreme and exceptional high quality, chemical gilding and buffing properties. ...