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Preparation methods of Sodium Chlorine

  • Author:Hubei Ocean Biotech Co,.LTd
  • Source:www.oceanchinachem.com
  • Release on :2016-06-09

Industrial methods

Introduced by water (containing 2.4% sodium chloride) yantian, after sun drying, concentration crystal, made products. Have water, steam heating, sand filter, with ion exchange membrane electrodialysis method for enrichment, get brine (containing sodium chloride 160 ~ 180 g/L) by bittern gypsum precipitation evaporation, centrifugal separation, more than 95% of sodium chloride (moisture content 2%), then through dry salt can be obtained. Also can use rock salt, salt lake brine as raw material, after sun drying, obtained crude salt. Underground brine and well salt as raw materials, through evaporation and concentration, three-way or four-way precipitation crystallization, centrifugal separation.                 

In the laboratory preparation method is mix equal amounts of hydrochloric acid and sodium hydroxide, sodium chloride solution. Again the solution distillation, available sodium chloride crystals. The main reaction: HCl + NaOH = = NaCl + H2O.

In addition, the metal sodium in chlorine light also can produce sodium chloride environment, the chemical equation is as follows: 2 na + nacl lit Cl2 = = 2

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