Used primarily as a nitrogen-sulfur fertilizer in agriculture, promoting plant growth and improving crop yield. Especially effective for crops with high sulfur demand like onions and garlic. Also utilized in water treatment to remove impurities and as a precipitating agent in protein purification during biochemical processes. Commonly found in fire extinguisher formulations due to its flame-retardant properties. Used in the textile industry for dyeing and printing processes, and in the production of ammonium salts and other chemicals.