Citric acid monohydrate is a weak organic acid that, has the chemical formula C ₆H ₈O ₇. It occurs naturally in citrus fruits.  sour-tasting nature, citric acid is predominantly used as a flavoring, and preserving agent — especially in soft drinks, and candies. It’s also used to stabilize or preserve medicines and as a disinfectant against viruses and bacteria. In addition to its use in cleaning products, It is used in a variety of other industries, such as personal care, agricultural, food, pharmaceutical, and electroplating industries. In the food industry, it serves as a preservative, flavoring agent, and vegetable rinse.