Ammonium sodium phosphate dibasic tetrahydrate is widely used in the food industry as a buffering agent and emulsifier, particularly in processed cheese products to improve texture and stability. It also serves as a nutrient source in microbial culture media, aiding in the growth of bacteria and yeast in laboratory settings. In water treatment, it acts as a corrosion inhibitor, protecting metal surfaces in boiler systems. Additionally, it is employed in the production of ceramics and glass, where it helps control viscosity and melting properties. In agriculture, it is used as a fertilizer to provide essential nutrients like phosphorus and nitrogen to plants.