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

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13-02-2018
Biology

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

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alove1777 alove1777 · Answer 1 · 2018-02-13T08:03:53+01:00

alove1777 alove1777

13-02-2018

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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