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When is 70% isopropyl rubbing alcohol better than 91%?
Can you tell me when 70% isopropyl rubbing alcohol is better than 91%?
Yes, certainly! 70% isopropyl rubbing alcohol is better than 91% when you need it to evaporate more slowly, such as when sterilizing surfaces or medical equipment. The lower concentration of alcohol in 70% solutions allows them to stay wetter for longer, which helps in penetrating the cell walls of microorganisms.