Ammonium sulfate is widely used as a fertilizer in agriculture due to its high nitrogen and sulfur content, which are essential nutrients for plant growth. It is particularly effective in alkaline soils, as it helps lower the pH, improving nutrient availability. In the industrial sector, it serves as a flame retardant in textiles and wood products, providing fire resistance. It is also utilized in water treatment processes to precipitate dissolved impurities. Additionally, ammonium sulfate is a key component in the production of certain vaccines, where it aids in protein purification. In the food industry, it acts as a dough conditioner and stabilizer in baked goods.