Re: Acids

[etienne garbaux <photographeur@nerdshack.com>]

> it would be worth purchasing citric acid (in pure, crystalline form) 
> and make your own solution.
Citric acid is readily available on the Internet (soapmakers use it 
to make "fizz-bombs"), and may be available (as "sour salt") in the 
canning section of your supermarket.  Some winemaking stores carry 
it, too.  I've been told pool supply stores may sell it for adjusting 
the pH of pools and hot tubs.

Best regards,

etienne