Citric Acid is a naturally occurring fruit acid that is commercially produced by microbial fermentation of a carbohydrate substrate. It is the widely used organic acid and pH control agent in pharmaceutical, food, beverages, and technical applications. Citric Acid Anhydrous is very soluble in water, freely soluble in ethanol, and sparingly soluble in ether. Citric Acid is chemically stable if stored at room temperature.