Used as a buffering agent in various biological and chemical applications to maintain stable pH levels. It is commonly employed in the preparation of cell culture media, ensuring optimal conditions for cell growth. In molecular biology, it serves as a component in DNA and protein extraction protocols. Additionally, it is utilized in food processing as a stabilizer and emulsifier, particularly in dairy products and beverages. In pharmaceuticals, it acts as an excipient in tablet formulations to control drug release and improve stability. In agriculture, it is used as a fertilizer to supply phosphorus and potassium to plants, promoting growth and root development. It also finds use in water treatment processes to prevent corrosion and scaling in pipes and boilers.