A process for producing alkali metal chlorate that includes introducing an electrolyte solution containing alkali metal halide and alkali metal chlorate to an electrolytic cell, electrolyzing the electrolyte solution to produce an electrolyzed chlorate solution, transferring the electrolyzed chlorate solution to a chlorate reactor to produce a more concentrated alkali metal chlorate, wherein the electrolytic cell is a non-divided electrolytic cell that includes: at least one anode or at least one cathode that includes an electrode substrate comprising M(n+1)AXn, where M is a metal of group IIIB, IVB, VB, VIB or VIII of the periodic table of elements or a combination thereof, A is an element of group IIIA, IVA, VA or VIA of the periodic table of elements or a combination thereof, X is carbon, nitrogen or a combination thereof, where n is 1, 2, or 3; and an outlet for transferring electrolyzed solution to the chlorate reactor.