MarkBoran4562 MarkBoran4562
  • 13-02-2018
  • Biology
contestada

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

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alove1777
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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