Citric acid monohydrate

Citric acid monohydrate is a form of citric acid that includes one molecule of water (H2O) for each molecule of citric acid. It is a white, crystalline powder that is odorless and has a strong acidic taste. It is used in a variety of applications, including as a flavoring and preservative in food and beverages, in pharmaceuticals, and in cleaning and personal care products.

Chemical Properties

Citric acid monohydrate has the chemical formula C6H8O7·H2O. It is a monohydrate, meaning it contains one molecule of water for each molecule of the other substance, in this case, citric acid. It is a weak organic acid that is soluble in water and alcohol. It has a melting point of 135-152 degrees Celsius and a boiling point of 310 degrees Celsius.

Uses

Citric acid monohydrate is used in a variety of applications. In the food and beverage industry, it is used as a flavoring and preservative. It gives a tart, refreshing flavor to beverages and can also be used to balance sweetness in foods. In the pharmaceutical industry, it is used as an excipient in pharmaceutical tablets and capsules. It is also used in cleaning products and personal care products, such as shampoos and soaps, for its ability to adjust the pH and for its pleasant, citrusy scent.

Safety

Citric acid monohydrate is generally recognized as safe (GRAS) by the Food and Drug Administration (FDA). However, it can cause skin and eye irritation in some people, and those with sensitive skin should use products containing it with caution.

See Also

• Citric acid
• Monohydrate
• Food and Drug Administration