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30 June, 06:07

Why is 100 alcohol not an effective disinfectant as 70 percent?

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  1. 30 June, 06:30
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    100% alcohol is extremely flammable and evaporates very fast. It may just dehydrate the microbe and put it in a state where it can still cause harm. 70% will stay on a surface long enough to actually kill harmful microbes.
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