From: "@frank.net   
      
   On 4/28/2019 2:30 AM, T wrote:   
   > Hi Frank,   
   >   
   > If you would put your chemists hat on for a minute, I'd   
   > like to mooch a free question from you.  Google is failing   
   > me here.   
   >   
   > When you let distilled white vinegar dry on a wash rag   
   > (good and dry), if you re-wet the wash rag, does the   
   > vinegar come back?  Or does the vinegar part boil off   
   > whilst the rag dries out?  And I am just smelling the   
   > organic solids that the vinegar was made out of?   
   >   
   > Many thanks,   
   > -T   
   >   
   I see acetic acid has a boiling point 32 deg F above water so it will   
   evaporate.   
      
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