This material is surplus from the manufacturing dryers that has not yet been screened. It is mostly a larger crystalline structure agglomerated together. It can be crushed and screened for a variety of particle sizes. Place in a clean star roller for 60-120 minutes to 'rotary round' the edges, then screen for sizes (see our stainless screens in the tooling section). Adding 10% to ammonium nitrate will sharply increase detonation values in exploding targets