Step-by-step Guide: How Caustic Soda is Made

TRADEASIA CONNECTED GLOBALLY Step - by - step Guide : How Caustic Soda is Made Tradeasia International Pte Ltd SALT 01. SELECTION OF RAW MATERIALS The primary component required is sodium chloride , commonly known as salt . 04. PREVENTION OF CHLORINE AND SODIUM HYDROXIDE MIXING The synthesis of sodium hydroxide and pure chlorine gas is separated by anode and cathode compartments . 05. FORMATION OF SODIUM HYDROXIDE SOLUTION The hydroxide ions formed at the cathode combine with sodium ions in the brine to produce sodium hydroxide . The solidified caustic soda flakes / pearls are then harvested , dried , and packaged for distribution and use . NH3 CI 02. BRINE PRODUCTION ( CHLOR - ALKALI PROCESS ) The sodium chloride is dissolved in water to form a concentrated brine solution . 03. ELECTROLYSIS ( ANODE & CATHODE ) Specialized electrolytic cells , which can either be membrane cells or diaphragm cells , electrolyze the brine . CI 06. CONCENTRATION AND PURIFICATION The collected sodium hydroxide solution still contains impurities and excess water . To obtain pure caustic soda , the solution is subjected to these processes . 07. SOLIDIFICATION AND FORMING CAUSTIC SODA The concentrated sodium hydroxide solution is further solidified to produce different forms of caustic soda , such as flakes or pearls . Read the blog at https : //www.caustic-soda .biz / step - by - step - guide - how - caustic - soda - is - made /