Used in the food and beverage industry as an acidulant to enhance tartness and stabilize pH in products such as soft drinks, candies, and baking powders. Commonly employed in winemaking to adjust acidity and prevent crystallization of tartrates. Serves as a chiral resolving agent in pharmaceutical synthesis due to its optical activity. Utilized in metal cleaning and electroplating processes for its ability to chelate metal ions. Also found in effervescent tablets and as a component in certain photographic chemicals.