SODIUM HYPOCHLORITE AQUEOUS SOLUTION, SODIUM HYPOCHLORITE PENTAHYDRATE CRYSTAL FOR OBTAINING SAME, AND SODIUM HYPOCHLORITE AQUEOUS SOLUTION PRODUCTION METHOD

摘要

The purpose of the present invention is to provide a sodium hypochlorite aqueous solution having excellent storage stability even at a high concentration and a production method therefor. The invention provides a sodium hypochlorite aqueous solution, and a production method therefor, whereby a sodium hypochlorite concentration of 15 to 30% by mass, an NaCl concentration of less than 0.20% by mass, and an iron concentration of 0.20 ppm by mass or less are satisfied simultaneously.