Used in food processing as a buffering agent and emulsifier to maintain texture and consistency in processed cheeses and canned seafood. Helps retain moisture in meats and poultry during freezing and cooking, improving yield and juiciness. Acts as a leavening agent in baked goods by reacting with baking soda to release carbon dioxide. Also found in detergents and cleaning products for its water-softening properties, enhancing cleaning efficiency by preventing mineral buildup.