Citric acid is a naturally occurring fruit acid, produced
commercially by microbial fermentation of a carbohydrate
substrate. Citric acid is the most widely used organic acid and
pH-control agent in foods, beverages, pharmaceuticals, and
technical applications. Citric acid anhydrous occurs as colorless
crystals or as a white, crystalline powder with a strongly acidic
taste. It is very soluble in water, freely soluble in ethanol (*6
%), and sparingly soluble in ether. Citric acid anhydrous is
non-toxic and has low reactivity. It is chemically stable if
stored at ambient temperatures. Citric acid anhydrous is fully
biodegradable and can be disposed of with regular waste or
sewage.