Granular grade can also be direct-applied. Standard grade is used as a raw material for ammoniated fertilizers or dissolved in liquid fertilizers. It is also suitable for direct application by ground and air, or through irrigation systems. Standard grade is specially treated to minimize fugitive dust and fines. The product is applied directly to farmland, mixed with other dry bulk fertilizers, dissolved into liquid fertilizers, applied through irrigation systems, or used in ammoniated fertilizers.
Natural gas is used to make ammonia and molten sulfur is used to make sulfuric acid.
These two materials are reacted with phenol to make caprolactam, a chemical component used in nylon for use in carpets, tires, seat belts, air bags and more. The same process that creates caprolactam also creates ammonium sulfate in an aqueous phase. A 38 percent solution of ammonium sulfate by weight is the maximum solubility in a clear liquid. Calcium, magnesium and other minerals found in hard water can tie up the herbicide and interfere with plant uptake. Follow postemergence herbicide label for specific rate recommendations and mixing instructions.