How is hypochlorous acid made?

Category: PRODUCTION & STABILITY

Hypochlorous acid is made through a process called electrolysis. By passing a sodium chloride solution (NaCl) through an electrolysis cell containing an anode and a cathode, electrolyzed water is generated. There are two commonly used electrolysis methods for generating hypochlorous acid, membrane cell electrolysis and single cell electrolysis. Membrane cell electrolysis converts a saltwater brine into two solutions, a strongly acidic anolyte of hypochlorous acid and a strongly alkaline catholyte of sodium hydroxide. Single cell electrolysis converts a saltwater brine into one solution, a slightly acidic-to-neutral anolyte of hypochlorous acid.