Question

Why minor quantities of Na2CO3 required in electrolysis process?

(a) For Cl2 drying

(b) For high purity brine

(c) For salt purification

(d) For high purity depleted brine

This question was addressed to me in examination.

I need to ask this question from Inorganic Chemical topic in division Inorganic Chemical Industries of Chemical Technology

Answer 1

The correct choice is (c) For salt purification

To elaborate: Electrolysis process of chlorine production contains diaphragm cell and mercury cell. In this process,minor quantities of Na2CO3 and NaOH required for the salt purification while H2SO4 is required for Cl2 drying.