Ammonium sulfate is widely used in agriculture as a fertilizer, providing essential nitrogen and sulfur to promote healthy plant growth. It is particularly effective for crops that require a higher sulfur content, such as wheat, corn, and potatoes. In the industrial sector, it serves as a flame retardant in textiles and wood products, helping to reduce flammability. Additionally, it is utilized in water treatment processes to purify drinking water and remove impurities. In biochemistry, ammonium sulfate is commonly employed in protein purification through precipitation, aiding in the separation and isolation of proteins. It also finds application in the production of vaccines, where it acts as a stabilizer to maintain the efficacy of the vaccine components.