(saltpeter) [KNO3] White crystals, Min. 99.4% Pure
Potassium Nitrate is an oxidizer used in black powder, rocket fuel, primes, glitter and spark-producing formulations. Excellent for anything requiring potassium nitrate. The consistency is like granulated sugar. Use as is if you are ball milling it to make black powder. Or it can be easily milled with a cheap coffee and spice grinder or a ball mill.