Used as an anticoagulant in blood collection tubes by binding calcium ions, preventing clotting during medical testing. Commonly found in dialysis solutions to control pH and act as a buffer. Employed in food and beverages as an acidity regulator and emulsifier, especially in processed cheeses to improve texture and melting properties. Utilized in pharmaceutical formulations to stabilize active ingredients and enhance solubility. Also serves in cleaning products for its ability to chelate metal ions, improving cleaning efficiency in hard water.