Why won’t denatured alcohol act as a sanitizer?
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Denatured alcohol is widely used as a sanitiser, it’s performance is the same as undenatured alcohol. This is why alcohol used in hand sanitisers is always denatured. If it wasn’t denatured, there would be huge amounts of liquor tax to pay.
For hand sanitiser, however, the use of toxic denaturants is not a good idea. So, old fashioned denaturants like methanol and pyridine are not used. Instead, isopropyl alcohol with or without denatonium benzoate tend to be used as denaturants.
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