Abstract: The invention relates generally to disinfecting solutions and, more particularly, to stabilized Hypochlorous acid solutions, their production, and use. One embodiment of the invention provides a method of preparing a Hypochlorous acid solution, the method comprising: electrolyzing a salt solution of purified water and substantially pure sodium chloride to form a Hypochlorous acid solution; introducing into the Hypochlorous acid solution a quantity of carbon dioxide gas; and introducing into the Hypochlorous acid solution a quantity of sulfamic acid.