Archive of the former Yahoo!Groups mailing list: 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.