Citric acid (CA), also known as citric acid, with the molecular formula C₆H₈O₇, is an important organic weak acid, colorless crystals, odorless, readily soluble in water, and the solution is acidic. In biochemistry, it is an intermediate in the citric acid cycle (tricarboxylic acid cycle), which occurs in the metabolism of all aerobic organisms. Citric acid is widely used as an acidity regulator (GB2760-2014), flavoring agent and chelating agent.
What are the precautions when using citric acid:
1.Consumption: citric acid is an edible acid, which can enhance normal metabolism in the body and is harmless to the human body in appropriate doses. Adding citric acid to certain foods tastes good and can promote appetite. Although it is not directly harmful to the human body, it can promote the excretion and deposition of calcium in the body. Even though citric acid has a very wide range of effects, it should be used in accordance with the recommendations for its use and the required amount to avoid overdose.
2. Industrial: For the skin, citric acid solution has an irritating effect on the mucous membranes, which can cause eczema if it is not properly protected in the workplace. Citric acid is also a raw material that can cause open flames. When the powdered acid in contact with air under certain conditions will form an explosion. Therefore, it must be used with safety in mind.
3. Storage: citric acid monohydrate compounds in dry air or heated to about 40 degrees, the loss of water of crystallization, there is a slight deliquescence in the wet air, dilute aqueous citric acid solution can be fermented in the standing. Therefore, solid monohydrate or anhydrous compounds should be stored in airtight containers in a cool and dry place.
In general, although citric acid is a commonly used food additives, is a kind of widely used acidic seasoning, but should also follow the use of certain methods and precautions. When using citric acid, you should use it correctly, take vitamin C supplements in a timely manner, and maintain good dietary habits to avoid risks and stay healthy.