Nippon Light Metal Company, Ltd.

Tomohide Okada

Takehiro Matsunaga

Takashi Toyama

Hiromichi Ito

Kaoru Shimada

Hideo Shimazu

Yukihiro Sugiyama

Hiroshi Fujihisa

Satoshi Takeya

Yoshito Gotoh

Provided are sodium hypochlorite pentahydrate crystals capable of long-term storage that have improved stability of sodium hypochlorite pentahydrate, which is effective as an oxidizing 5 agent or bactericide, in the vicinity of normal temperatures, and a method for producing the same. The sodium hypochlorite pentahydrate crystals are such that peaks appear at the locations of the angles of diffraction described in Table 1 of claimover a range of 10&#xb0;&#x2264;2&#x3b8; (angle of diffraction)&#x2264;65&#xb0; as measured by powder X-ray diffraction using a Cuk&#x3b1; radiation source.

Sodium hypochlorite pentahydrate crystals and method for producing same

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Shizuoka, Japan

Tomohide Okada