Citric Acid: Application

The content of the article

All the hostesses will find among the spices a bag of product, the use of which is very common and popular in everyday life. This is a substance such as food supplement E330. Most likely, it finds application as a home remedy for descaling; it is indispensable in preservation and during cooking. The useful properties of citric acid are far from being exhausted..

What is citric acid?

By chemical definition, this is a derivative of the tricarboxylic acid cycle. An acidic intermediate having a white crystal structure is comparable in appearance to granulated sugar. The biochemical role of this substance in the organic cellular respiration of animals, plants, microorganisms is extremely important. In individual plants it may be contained in high concentration (a striking example is citrus fruits, sources of vitamins). To understand what citric acid is, you need to become more familiar with its properties and effects on the human body..

What citric acid is made of

Her discovery of chemistry was due to the Swede pharmacist Scheele, who isolated the substance from the unripe lemon fruits. The product melted at a temperature of 153 ° C, decomposing upon further heating into carbon dioxide and ordinary water, it was easily dissolved in water, alcohol – worse, ether – very bad. The initial production of shag tobacco from citrus juice and biomass of tobacco plant replaced modern synthesis. In industrial production, a lemon is made according to the formula for synthesizing sugary products and Aspergillus mold.

Lemons in a plate

What can be replaced

In everyday life, such a product is available, and is presented in many stores with packages of packaged powder, 50 grams each. If you didn’t have the right ingredient, for food use at home, replace citric acid with juice, perhaps squeezing an ordinary lemon, and canning with vinegar. Squeezed juice will replace its use for cosmetic use at home.


In chemical language, Citric acid is called 2-hydroxypropane-1,2,3-tricarboxylic organic compound, a weak 3-basic carboxylic acid, and is an antioxidant. The structural composition of citric acid is determined directly by the Krebs cycle, where the acetyl components are oxidized to carbon dioxide and the final formula C6H8O7 is formed. Essential compounds and salts are called citrates, “acid salts”.


The substance is known for its medicinal characteristics due to its biochemical formula. She, as an activator of energy metabolism, helps to speed up metabolism, helps to cleanse of excess salt, harmful toxins, removal of intoxication, anti-tumor effect. All these properties of citric acid are positive when it is used in a limited way, without harm and danger, but in a limited amount it is allowed for comprehensive use.

Citric acid crystals in a plate


It appears in the following action:

  • purification from salts, slagging;
  • improving digestive function;
  • increased visual acuity;
  • stimulate the burning of carbohydrates;
  • decreased gastric acidity;
  • promoting the release of toxins through the epidermis.

This is not a complete list of the usefulness of citric acid for the body. The antitumor effect, increased immunity, improved absorption of calcium, normalization of the activity of almost all physical systems, including psycho-neural, endocrine-immune, are of general importance. Her influence as a health regulator is very important.

The use of citric acid

  • in the food industry: as flavoring, acid regulator and preservative.
  • in medicine: use in drugs that improve energy metabolism, metabolism;
  • in the cosmetic field: in the manufacture of a variety of cosmetic products, including those with whitening (for dull skin) and effervescent effect (for baths);
  • in the oil industry: to neutralize the acidity of solutions after alkalization during the drilling process of wells;
  • in construction: as an additive to cement and gypsum materials to reduce setting speed;
  • at home: chemical technical cleaner;
  • the use of lemongrass with hydrogen peroxide: to etch and solder printed circuit boards.

Citric acid in a jar

Is citric acid harmful to the body

Despite the need for the constant presence of such a substance in human organs, it is necessary to use citric acid with caution. An excess of such an active product affects the teeth, can provoke tooth decay. In addition, the acid causes irritation of the gastric mucosa, manifesting pain up to vomiting with blood. Therefore, suffering from gastric diseases must be limited or not consumed at all in order to avoid harm, deterioration.

In the dry version and in a strong solution, irritation will occur when it comes into contact with the skin (very strong in the eyes), and when inhaling, the respiratory system. High dangerous concentrate is fraught with burns in the mouth. For safety, you need to use acid only in dilute form by dissolving the right amount in a glass of water or in tea. The daily rate is a teaspoon without top, but not at one time, but at intervals. Subject to application dosage, valid expiration date, the harm of citric acid to the body is practically excluded.

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