PHYSICO-CHEMICAL CHARACTERISTICS AND METHODS OF PURIFICATION OF SODIUM CHLORIDE
Ключевые слова:sodium chloride, table salt, purification, pharmacopoeia, medicine
Sodium chloride, called table salt, plays a huge role in maintaining life. The human body contains about 0.25% sodium chloride (in the form of ions). A person needs 5-10 g of table salt daily, since the salt balance is related to the body's water balance. Sodium chloride retains water in tissues, the necessary amount of it in the body creates a favorable environment for the action of protolytic enzymes of gastric juice, affect the electrical conductivity of cell membranes, etc. In addition, especially pure sodium chloride is used to prepare 0.9% isotonic solution for intravenous infusion, 20% solution to stop bleeding, as well as to obtain drugs "Hemodesis", "Rehydron" and for other purposes in medicine. Therefore, obtaining especially pure sodium chloride for the needs of the pharmacopoeia is an important task.
This article provides information about the physico-chemical characteristics and various methods of purification of sodium chloride for its further use in medicine.