Widely used as an acidulant in food and beverages to enhance flavor and preserve freshness. It helps control pH in products like soft drinks, candies, and jams. Acts as a natural preservative due to its antioxidant properties, preventing spoilage and browning in canned fruits and vegetables. Commonly found in cleaning agents and detergents for removing hard water stains and scale due to its ability to chelate metal ions. Used in pharmaceuticals to stabilize or buffer medications, and in effervescent tablets to produce fizz when dissolved in water. In cosmetics and personal care products, it adjusts acidity and acts as a preservative in creams, lotions, and facial cleansers. Also utilized in water treatment and industrial processes for metal cleaning and passivation.