Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, mpdickens <md30022@y...> wrote:
[Stefan Trethan <stefan_trethan@g...> wrote:]
> > how do you feel about replacing ipa with denatured
> > alcohol (ethanol)?
>  
<snip>
> I do have one thought regarding ethanol. Typically,
> ethanol comes in many qualitative grades as opposed to
> isopropyl with is available in a medical grade at drug
> stores in the usa. Just be sure the ethanol is of a
> decent grade and not watered down below 70% with h20.

"Denatured Alcohol" (a.k.a. "Industrial Alcohol") is not pure or 
merely watered-down ethanol - it is mixed with another solvent(s), 
which used to usually be mostly benzene.  But since benzene is
really nasty stuff, most that you get now has other (slightly) less 
nasty stuff instead.  I have a tin here which says, "Contains: 
Ethanol, Methanol, Methyl Isobutyl Ketone, Isopropanol and Water"
and lots of warnings about damage to brain and nervous system from 
inhalation or absorption through skin, cannot be made non-poisonous 
etc., as well as extreme flammability.

A.J.