Composition 15 Sulfur 15 Potassium sulfate 15 Cupric ammonia sulphate 27 Potassium nitrate 28 Potassium chlorateDescriptionDangerous mixture,since it contains both a nitrate and a chlorate with a copper ammonium compound and also a combination of chlorate with sulfur. Source: rec.pyrotechnics. post by Pierre de Reuck <pierre@icon.co.za