Used as an acidulant in food and beverage industries to enhance tartness and flavor, particularly in fruit-based products and sour candies. Commonly found in low-pH formulations for its ability to improve taste and act as a preservative. Utilized in cosmetics to adjust pH and promote skin exfoliation in skincare products. Employed in the pharmaceutical industry as an excipient to stabilize active ingredients and improve solubility. Also used in industrial applications such as metal cleaning and electroplating due to its chelating properties.