1results about "Chlorous acid" patented technology

To provide a novel method for producing chlorous acid water that can stably maintain chlorous acid in water for extended periods. [Solution] A method for maintaining chlorous acid (HClO2) stably in water for a long period of time by trapping (capturing or adsorbing) chlorine dioxide gas (ClO2) with an inorganic acid, inorganic acid salt, organic acid, or organic acid salt, either individually or in combination with two or more of these, thereby creating a transition state and slowing down the decomposition reaction. For example, a gas cleaning device 2 is filled with H2O, NaOH, and H2O2 as a gas cleaning liquid, chlorine dioxide gas is prepared in a chlorine dioxide gas storage tank 3, sodium carbonate, dipotassium hydrogen phosphate, and sodium tetraborate are filled in a chlorous acid water production tank 1, and an air pump 4 is operated to introduce chlorine dichloride into the chlorous acid water production tank 1 to produce chlorous acid water.