ANFO
ANFO, also written as AN/FO (an acronym for ammonium nitrate/fuel oil; AN-foh) is a widely used bulk industrial high explosive. It consists of 94% porous prilled ammonium nitrate (NH4NO3) (AN), which acts as the oxidizing agent and absorbent for the fuel, and 6% number 2 fuel oil (FO) (road diesel).