Molecular formula: C6H8O7
Citri acid anhydrous
The molecular weight is 192.1
English Name: citri acid anhydrous, citric acid anhydrous BP, citric acid anhydrous
Colorless translucent crystal or white particle, or white crystalline powder, often containing a molecule of crystal water, odorless, acid taste, soluble in water, alcohol and ether.
Its calcium salt is more soluble in cold water than in hot water, which is often used to identify and separate citric acid. Anhydrous citric acid can be obtained by controlling appropriate temperature during crystallization.
The aqueous solution is acidic. It is slightly weathered in dry air and deliquescent in humid air. Above 175 ℃, water and carbon dioxide are released.
It is mainly used in food and beverage industry as sour agent, acidity regulator, seasoning agent, preservative and preservative.
It is also used as antioxidant, plasticizer and detergent in chemical industry, cosmetics industry and washing industry