An antimicrobial hypochlorite solution stable, retains its activity for at least 3 months, hypochlorous acid having high level (500ppm or more), and a hypochlorous acid (chlorides low chloride concentration and a pH of 3.5 to 7.0 between to stabilize the composition without the need for an aqueous hypochlorous acid composition having a maximum chloride level) of 3, an additional stabilizer: 1 antibacterial hypochlorite aqueous solution that can bring. Solid compositions are also provided in order to produce a stable solution.安定した抗菌性次亜塩素酸水溶液であって、少なくとも3ヶ月間その活性を保持し、高レベルの次亜塩素酸(500ppm以上)と、低塩化物濃度(塩化物と次亜塩素酸とが1:3の最大塩化物レベル)を有する水性次亜塩素酸組成物と、追加の安定剤を必要とすることなく前記組成物を安定化する3.5~7.0の間のpHとをもたらすことができる抗菌性次亜塩素酸水溶液。また、固体組成物も、安定な溶液を製造するために提供される。