Forming rules of hydroxyl radicals produced in electrolyzed water

The ability to generate hydroxyl radicals of the different electrolyzed water and the sodium hypochlorite solution in the process of storage was investigated.The results showed that the changes of p H did not affect the ability of electrolyzed water to generate hydroxyl radicals when the available chlorine concentration was 17 mg / L.When the available chlorine concentration was 60 mg / L,the ability to generate hydroxyl radicals increased with the p H increasing,the hydroxyl radicals in slightly acidic electrolyzed water did not change significantly within 0~24h,the concentration of hydroxyl radicals reached the maximum when the storage time of 5h both at 17℃ and 4℃.At the different p H and the available chlorine concentration,and the capacity of electrolyzed water to produce hydroxyl radicals was stronger than that of sodium hypochlorite solution.