| abstract |
An acidic electrolyzed water having a sterilizing power over a long period (for example, 6 months or more) and a method for producing the same are provided. The acidic electrolyzed water has an effective chlorine concentration of 15 ppm or more, and at least one selected from acidic salts of inorganic acids, disodium dihydrogen pyrophosphate, sodium hexametaphosphate, and sodium dihydrogen phosphate. In addition, the pH value is 3.0 or more and less than 7.0, and the LD50 value of the acidic salt of inorganic acid is greater than 300 mg. A method for producing acidic electrolyzed water, comprising adjusting the raw material acidic electrolyzed water by electrolysis of an aqueous chlorine electrolyte solution, and adding an acidic salt of an inorganic acid to the raw acid electrolyzed water having an effective chlorine concentration of 15 ppm or more. [Selection] Figure 1 |