Citric Acid Is A Acid

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CITRIC ACID

Specification

Molecular form. C₆H₈O₇. Citric acid (CA) is an important organic weak acid. It is a colorless crystal, odorless, soluble in water and acidic in solution. In biochemistry, it is an intermediate in the citric acid cycle (tricarboxylic acid cycle), which occurs in the metabolism of all aerobic organisms.

A colorless translucent crystalline or white particle or white crystalline powder, often containing one molecule of crystalline water, odorless, extremely acidic, soluble in water, alcohol, and ether. Its calcium salts are more soluble in cold water than hot water, and this property is often used to identify and separate it.

Application

Citric acid is an organic acid produced by microbial fermentation, which is widely used in the production of detergent, and its own specificity and chelation play an active role. it in the actual use of the process, has a good performance, mainly in terms of safety is more prominent, the preparation of it raw materials are derived from food, which is safe food grade microorganisms. The use of it will not affect the environment, it is easy to degrade under the action of microorganisms and heat, and its own chelating ability is also relatively strong. The main citrate has a strong chelating ability for manganese ion and iron ion, and the use effect is also relatively prominent.

Form of existence:
Citric acid can exist as anhydrous or monohydrous. The crystal form of it is different due to different crystallization conditions, slightly weathered in dry air, hygroscopic in humid air, heating can be decomposed into a variety of products, and can react with acids, bases, glycerin, etc. Anhydrous it is crystallized from hot water, while citric acid monohydrate is crystallized from cold water. Citric acid monohydrate can be converted to anhydrous at about 78 °C by removing bound water. it can also be dissolved in anhydrous ethanol at 15 °C (76 parts citric acid per 100 parts of ethanol) and can react with ethanol to form ethyl citrate. At temperatures above about 175 °C,it breaks down and releases carbon dioxide.

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