Manufacture of sodium metal from fused NaCl (downs cell) . . . in this chemistry tutorial i am going to explain the manufacture of sodium metal from fused sodium chloride through the process of electrolysis, this process take place in downs cell. i will discuss theconstruction and working of downs cell. Manufacture of sodium metal from fused NaCl is explained in chapter 7 electrochemistry of class 9 chemistry book. if you are chemistry student and wants to understant the concept of manufacturing