Sodium chloride, colorless cubic crystals or white crystals. Soluble in water and glycerol, slightly soluble in ethanol and liquid ammonia. Insoluble in hydrochloric acid. There is a slight deliquescence in the air. Used for manufacturing soda ash, caustic soda, and other chemical products, as well as ore smelting. The food industry and fisheries are used for salt pickling, and can also be used as raw materials for seasonings and refined salt.
Function and Application
Inorganic and organic industries are used as raw materials for manufacturing chlorine gas, hydrogen gas, hydrochloric acid, soda ash, caustic soda, chlorates, hypochlorites, bleaching powder, metallic sodium, refrigerants for refrigeration systems, raw materials for organic synthesis, and salt precipitation agents. Used as a heat treatment agent in the steel industry. Highly refined sodium chloride is used as physiological saline. Used for seasoning in the food industry and daily life. A salt bath composed of potassium chloride, barium chloride, etc. in a high-temperature heat source can be used as a heating medium to maintain the temperature between 820 and 960 ℃. In addition, it is also used in industries such as glass, dyes, metallurgy, etc.