Use of salt mine resources

Salt is a necessity for human life and a basic raw material for the chemical industry. It is also widely used in agriculture and other industries.
Salt is an indispensable substance for maintaining the normal development of human physiology. Adults generally contain about 90 g of sodium and 85 g of chlorine, and most of them are stored in body fluids. Sodium plays an important role in muscle contraction, heart pulsation, blood circulation, transmission of neural information, metabolism of carbohydrates and proteins, and acid-base balance of body fluids. Chlorine not only maintains the acid-base balance and osmotic pressure balance in the human body, but also is the main anion of the electrolyte in the gastric juice, which can promote the hydrochloric acid and help digestion. In order to supplement sodium chloride excreted with urine and sweat, adults generally need to consume 5-8 g of salt per day, and need to increase their intake in summer and high temperature environment. If the human body lacks salt, it is light and tired, indifferent and indifferent, dizzy when standing up; heavy nausea and vomiting, painful muscle spasm, edema, blood pressure drop; extremely heavy, stupor, nausea, vomiting and even coma, blood pressure is further reduced or not Measure. In addition to salt for seasoning, there are the opsonization and pharmacological functions: salt water bath to treat skin rashes, arthritis, chronic anemia; can serve a few grams of saline hemostasis pulmonary hemorrhage; silver in water, bromine, iodine, chromium poisoning, clothing Salt water can be detoxified; injection of normal saline can be used as a first aid after major bleeding. A series of health salts and pharmaceutical salts can be prepared by using salt as a carrier and adding essential salts to the body. Adding nutrients, flavorants and other seasonings to the salt can be used to formulate a series of seasoning salts and nutrients.
Salt is widely used in industry and is one of the most basic raw materials in the chemical industry. It is known as the "mother of the chemical industry". Most industrial salt for the production of soda ash, caustic soda, chlorine, hydrochloric acid, sodium and other metals. Alkali and hydrochloric acid are widely used in chemical, textile, paper, soap, dye, metallurgy, ceramics, glass medicine and other departments. Chlorine can be directly used for bleaching and disinfection. It can also be used in the manufacture of bleaching powder, toxic gas and inorganic compounds. It can also be used in the manufacture of various organic chlorine compounds and organic compound intermediates, such as synthetic resins, perfumes, herbicides, preservatives, fire extinguishing agents, etc. It is also used to synthesize hydrochloric acid and extract bromine and iodine. Sodium metal can be used as a catalyst for preparing complex organic compounds, a reducing agent for extracting rare elements, and an anti-wear alloy and a sodium-filled vapor bulb. Melting salt and brine in steel industry and by tempering the hardened steel material, the adhesive as sand casting. For refining copper (calcination chloride) in non-ferrous metallurgy industry, electrolytic metal magnesium. Salt can be used in agriculture for seed selection, fertilization, etc., to increase crop yield. In animal husbandry, salt is essential for livestock growth and disease prevention. Salt is also an essential material for fisheries, food processing and storage, water treatment, national defense and national reserves, and an important export product for foreign exchange. Using the principle of freezing point of salt solution, salt can also be used to dissolve ice and snow on the road and reduce traffic accidents. Salt is also the basic raw material for synthetic leather, man-made fiber, plastics, pesticides and other industries. According to statistics, there are about 15,000 kinds of salts and their derivatives used in industry and agriculture. The new use of salt as a catalyst is a combination of salt and the development of new energy sources. According to the World Economic Herald, scientists have confidently predicted that the “salt sun pool” with salt as a new energy source will bloom everywhere in the near future. With the rapid development of science and technology, the application of salt is becoming more and more wide, and new uses will continue to emerge.

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