I was curious myself because I still have some left over from back in the day when I used it . I went to Google and found this from a site (lifted it directly)
Calcium hypochlorite decomposition is self-sustaining. Getting rid of the source of heating will not stop the formation of fumes and the reaction will proceed until the material is no longer available.
Dichlor decomposition not only will generate enough heat to sustain a thermal decomposition but it may generate enough heat to ignite easily combustible material such as wood, paper or oily rags.
THinkin I dont need to keep this stuff around anymore
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