Acidic electrolyzed water, and manufacturing method for same

Abstract

To provide acidic electrolyzed water having disinfecting power for a long period of time (for example, six months or more), and a production method for this acidic electrolyzed water. The acidic electrolyzed water has an effective chlorine concentration equal to or greater than 15 ppm, and contains an acid salt of an inorganic acid.

What is claimed is: 
     
         1 . An acidic electrolyzed water having an effective chlorine concentration equal to or greater than 15 ppm, and containing an acid salt of an inorganic acid. 
     
     
         2 . The acidic electrolyzed water of  claim 1 ,
 wherein the pH value is equal to or greater than 3.0 and less than 7.0.   
     
     
         3 . The acidic electrolyzed water of  claim 2 , wherein the LD 50  value of the acid salt of the inorganic acid is greater than 300 mg. 
     
     
         4 . The acidic electrolyzed water of  claim 3 , wherein the acid salt of the inorganic acid is at least one selected from among disodium dihydrogen pyrophosphate, sodium hexametaphosphate, and sodium dihydrogen phosphate. 
     
     
         5 . The acidic electrolyzed water of  claim 2 , wherein the acid salt of the inorganic acid is at least one selected from among disodium dihydrogen pyrophosphate, sodium hexametaphosphate, and sodium dihydrogen phosphate. 
     
     
         6 . The acidic electrolyzed water of  claim 1 , wherein the LD 50  value of the acid salt of the inorganic acid is greater than 300 mg. 
     
     
         7 . The acidic electrolyzed water of  claim 6 , wherein the acid salt of the inorganic acid is at least one selected from among disodium dihydrogen pyrophosphate, sodium hexametaphosphate, and sodium dihydrogen phosphate. 
     
     
         8 . The acidic electrolyzed water of  claim 1 , wherein the acid salt of the inorganic acid is at least one selected from among disodium dihydrogen pyrophosphate, sodium hexametaphosphate, and sodium dihydrogen phosphate. 
     
     
         9 . A production method for acidic electrolyzed water including the step of adding an acid salt of an inorganic acid to an acidic electrolyzed water base material having an effective chlorine concentration equal to or greater than 15 ppm. 
     
     
         10 . A The production method of  claim 5 , further comprising the step of purifying the acidic electrolyzed water base by electrolyzing a chlorine-based electrolyte solution. 
     
     
         11 . (canceled) 
     
     
         12 . (canceled) 
     
     
         13 . (canceled)