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

User Fraze
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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. 
User Pwn
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