Can I use 70% isopropyl alcohol instead? If yes, how much should be used for method 1?
Md Ariful Islam
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Dr. Md Rushad Rahman
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Unfortunately, no. For the sanitzer to be effective, it needs to be at least 60% alcohol. Using a 70% isopropyl alcohol will produce a sanitizer that has an alcohol content that's too low. You could use a 91% isopropyl alcohol, as a 2 parts alcohol-1 part aloe vera mixture will produce a sanitizer that's 60.6% alcohol.
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