Ammonium Nitrate, technical grade prilled (granular). May be used as laboratory reagent, in agriculture and gardening as a high-nitrogen fertilizer. Ammonium nitrate is used in cold packs and freezing mixtures due to its endothermic hydrating process. Ammonium nitrate is also used in pyrotechnics, herbicides and insecticides. WARNING: Ammonium nitrate is a strong oxidizer and may be explosive or highly reactive in contact with other chemicals. Extreme caution is required for use and safe keeping of this product. For professional use only. Additional Descriptions: CAS#: 6484-52-2 Hazard Class: Oxidizer 5.1Packing Group III Only ships via ground transportation. Packaged in bags, jars or pails.