Used in food processing as a buffering agent to maintain pH levels in products like cheese and canned foods. It acts as a nutrient source in fertilizers, providing phosphorus to plants. In the pharmaceutical industry, it serves as an excipient in tablets and capsules to control drug release. It is also employed in water treatment to prevent corrosion and scale formation in boilers and pipes. Additionally, it is utilized in laboratory settings as a reagent for biochemical assays and buffer solutions.