Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

----- Original Message -----
From: "Mycroft2152" <mycroft2152@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Thursday, June 01, 2006 11:14 AM
Subject: [Homebrew_PCBs] Re: MEK


> Think of MEK as extreme nail polish remover (acetone).
> It's actually the "big brother" to acetone. MEK is a
> very common industrial solvent and must be used with
> respect and all the correct protective equipment.

Acetone is ethyl ketone. I remember making it at school; the reaction got
out of hand, blowing the condenser etc. out of the flask and shattering them
on the ceiling. A green fountain of copper filings, copper sulphate,
sulphuric acid and ethanol shot up to the lab ceiling and rained down on us,
together with broken glass. The green stain was still there when I left a
couple of years later in 1960, it's probably still there.

Leon