Uses of ammonia. The major use of ammonia is as a fertilizer. It is most commonly applied directly to the soil from tanks containing the liquefied gas. The ammonia can be applied directly or in the form of ammonium salts, such as ammonium nitrate, NH4NO3, ammonium sulfate, (NH4)2SO4, and various ammonium phosphates. Urea, (H2N)2C=O, is also used as a source of nitrogen for fertilizer. Ammonia is also used in the manufacture of commercial explosives (e.g., trinitrotoluene [TNT], nitroglycerin, and nitrocellulose). In the textile industry, ammonia is used in the manufacture of synthetic fibres, such as nylon and rayon.
Huffman, Texas. Huffman, Texas is an unincorporated community of northeastern Harris County, Texas located northeast of Houston Texas on the East side of Lake Houston.
Frio County, Texas. Frio County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 17,217. The county seat is Pearsall. The county was created in 1858 and later organized in 1871. Frio is named for the Frio River, whose name is Spanish for cold.