Used in fertilizers to provide nitrogen, which promotes plant growth. Commonly applied in rice and wheat cultivation. Employed in the textile industry for dyeing and printing fabrics, helping fix dyes to fibers. Used as an electrolyte in dry cell batteries, particularly zinc-carbon batteries, to support electrical conductivity. Serves as a flux in soldering processes, especially in metalwork, to clean surfaces and improve solder adhesion. Utilized in cough medicines and expectorants to help loosen mucus in respiratory conditions. Applied in the food industry as a dough conditioner and stabilizer in bread and baked goods. Used in laboratories as a reagent for pH adjustment and buffer preparation.