Dumb guy science question here.
I came across an old half-empty 2L jug of hand sanitizer that expired in 2011 (I know, I know).
My understanding from reading the interwebs is that the effectiveness is reduced due to evaporation of the active ingredient (ethyl alcohol 62%, according to the label).
Question: Could I “reconstitute” the remaining ~1L by adding isopropyl alchohol to the remaining content? If so, should I? Just trying to salvage the content and avoid the elevated price of replacement, if feasible.
I tried to google, but was presented approximately 847563784957 versions of the same article warning me that hand sanitizer has an expiration date <gasp!>…
Thanks in advance!