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Chemical Engineering and Process
Critic Acid
Product: Critic Acid Anhydrous |CAS No:77-92-9
Molecular Formula: C6H8O7
Product: Critic Acid Monohydrate | CAS No:5949-29-1
Molecular Formula: C6H8O7. H2O
In its pure form, citric acid is colorless and odorless but has a strong acidic taste.
Citric acid's history dates back to 1784 when Swedish chemist Carl Wilhelm Scheele crystallized it from lemon juice. In 1917, food chemist James Currie discovered that he could produce citric acid using a strain of the black mold Aspergillus niger. This method is still in use today. It is commonly used in food production as a flavor enhancer and preservative. Due to its antioxidant properties, it is also an ingredient in medications to improve stability and act as a preservative.
There are many reasons to add citric acid to food, medicine, or other products. It can: Preserve food. It is used to keep food fresh for longer periods. In some cases, it may prevent foodborne botulism, an illness that can be caused by home-canned foods that are low in acid. Preserve personal care products. It may keep cosmetics and other products fresh for longer. Have protective effects in the body. Citric acid used in medicine can kill bacteria and lower the acid in urine. Remove tough stains. For this reason, it’s added to some cleaning products.