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Molecular formula : NaCl
CAS :
nature : colorless crystalline cube or white crystals. 2.165g/cm3 density. 801 ° C melting point. Boiling Point 1413 ° C Dissolved in water, glycerol, ethanol-soluble, liquid ammonia. Insoluble hydrochloride. The air is deliquescence-sexual. By seawater (containing an average of 2.4% NaCl) to introduce Yantian, sun drying, concentration crystallization system in crude. Seawater can, steam heating, sand filter filtration, ion exchange membrane electrodialysis enrichment, received saline (NaCl containing 160 ~ LCD / L) precipitated by evaporation bittern gypsum, centrifugal separation, the system more than 95% sodium chloride (2% moisture), then Drying can be obtained salt (table salt). Also with rock salt, raw materials for the Salt Lake brine by sun drying, the product is raw salt. Underground salt and salt from wells as raw materials, through the three-way or four-effect evaporation condensation and precipitation crystallization in centrifugal separation. Used in the manufacture of soda ash and caustic soda and other chemical products, ore smelting. The food industry and fisheries for salted, also used for sauces in raw materials and refined salt.
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