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Old 03-07-2020, 09:26 AM
David Hopman David Hopman is offline
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Location: Sutter Creek, CA
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Originally Posted by Gabriel Greenlaw View Post
I learned this week that for disinfecting the 70% isopropyl alcohol is better than the higher percentage because the water slows down the evaporation allowing the alcohol to fully kill the cells. I guess the 90% stuff just kills the outer layer.
Yes, 70% isopropyl is the optimum dilution for maximum killing. Lower or higher isn't as effective.
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