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nature : manufacturing caustic soda (sodium hydroxide) and the chlorine in important ways. Will salt dissolution, purification, dubbed saturated solution by adding electrolyzer. DC-generated ion migration and discharge. Solution of anions (Cl - or hydroxide ions) towards the anode and discharge, cationic (sodium ions and chloride ions) towards the cathode and discharge. Generation chlorine at the anode, cathode in generating chlorine and caustic soda solution. Caustic soda solution through evaporation, concentration can be obtained liquid caustic soda (liquid caustic soda) and solid caustic soda (solid base). This method is used in cell-membrane, the membrane-type electrolyzer and mercury. As caustic soda, chlorine, hydrogen and chlorine-based products are extensively used, this salt electrolysis solution as a starting point, has been formed with a large-scale chlor-alkali industry.
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