Method for producing stable hypochlorous acid solution

Abstract

The invention discloses a method for producing stable a hypochlorous acid solution. According to the method, the hypochlorous acid solution is obtained by mixing and reacting raw water, an aqueous solution of hypochlorite ion provider, a weak acid aqueous solution with the pKa of 4.0-6.5 and a conjugate base aqueous solution of the weak acid aqueous solution according to the following quantitative ratio: Q1=C / C1.Q0; Q2>=C / C2.0.435(1+m) / m.Q0; Q3=m.C2 / C3.Q2; m=10(pH-pKa). The method for producing the stable hypochlorous acid solution disclosed by the invention achieves the continuous automatic production of hypochlorous acid solution, and moreover, the hypocholorous acid solution produced according to the method has the storage stability of at least one year; and in addition, the method has the advantages of easy availability of the raw materials, low requirements for needed equipment, simple operation, greenness, environment protection and the like, and has industrial application value.

Description

technical field [0001] The invention relates to a production method of a hypochlorous acid solution, in particular to a method for producing a stable hypochlorous acid solution by a quantitative ratio method, and belongs to the technical field of disinfectant preparation. Background technique [0002] Hypochlorous acid (HClO) is a very active oxidizing agent. As early as more than 100 years ago, people have discovered that hypochlorous acid has a strong bactericidal effect. Hypochlorous acid is the core substance of the immune system of organisms. Dilute hypochlorous acid solution has a very efficient ability to kill microorganisms, and the use process is safe and pollution-free, so it is widely used in personal, family, medical, agricultural Disinfection, cleaning, nursing, etc. in various industries such as animal husbandry and breeding. [0003] Cl in the hypochlorous acid solution 2 , HClO, ClO - dynamic balance (see figure 1 shown), and many studies have shown that...

AI Technical Summary

Problems solved by technology

The production of hypochlorous acid by electrolysis, such as: U.S. Pat. No. 5858201, not only consumes a large amount of electric energy, but also uses expensive noble metal electrodes that are easily damaged, making the production equipment costly and difficult to maintain. The most serious defect is: through The available chlorine content of the hypochlorous acid solution produced by electrolysis generally does not exceed 80mg / L, and there are many impurities; the hypochlorous acid solution with too low concentration not only has limited bactericidal ability, but also is difficult to store stably, so it can only be prepared and used immediately. Its wide application is greatly limited

Because the problem of stability cannot be solved well, the hypochlorous acid solution has been limited to the current production and use, so that its wide application has been greatly limited

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