> -----Original Message-----
> From: Homebrew_PCBs@yahoogroups.com
> [mailto:Homebrew_PCBs@yahoogroups.com]On Behalf Of Stefan Trethan
> Sent: Saturday, January 27, 2007 5:47 PM
> To: Homebrew_PCBs@yahoogroups.com
> Subject: Re: [Homebrew_PCBs] UK'ers, anyone in uk _not_ using fecl ?
>
>
> On Sat, 27 Jan 2007 23:02:26 +0100, Randy Ledyard
> <rll_groups@...>
> wrote:
>
> >
> > I can't see producing H2S from NaOH (lye), which might be another
> > driveway
> > cleaner product ingredient, and I can't see producing it from just a
> > detergent-based product....
>
>
> Who says H2S was involved at all? Just because the neighbour said it
> smelled of rotten eggs doesn't make it H2S. I think it unlikely that the
> cleaner contained sulphuric acid.
>
>
> ST
>
How many other compounds are there out there that smell like rotten eggs?
Thiols/Mercaptans/Sulfides are the only ones I know of...