PSN-L Email List Message
Subject: Re: Modified sound card and datalogging and geophones
From: Gordon Couger gcouger@..........
Date: Sun, 24 Jul 2005 01:08:15 -0500
C2H2 is a lot less stable than most gases. I have seen the
results of a spontaneous explosion of a C2H2 generator that the
fool I sold it to ran at 35 PSI. Fortunately no one was in the
shop when it blew up and white washed everthing in the place. It
wasn't a very violent explosion but it made a pretty good noise
and the flying parts of the generator could have killed anyone
in the room.
At less than 25 psi it is a lot better behaved but it can form
very unstable compounds with copper.
If you play with don't use copper wire for the igniter if is in
contact with the gas repeatedly or for more than a few seconds.
Acetylene is great gas to work with and is nice because you can
carry it around in the form of calcium carbide to make as much
as you when ever you need it. Unfortunately the apparatus for
don't it by its nature and the nature of Acetylene are
incompatible with modern safety standards.
> In a message dated 24/07/2005, charles.r.patton@........ writes:
> Earlier someone mentioned the idea of pre-filling some
> oxygen / acetylene. DON'T. You have small bombs now
> extremely sensitive to ESD. Small spark, whole tamale
goes off in
> your face, trunk, whatever. Spark so easy as most likely
> plastic, rubber, etc, that is not ESD treated. Even in
> you're looking for trouble.
> Hi Charles,
> Is this advice the result of *actual experiments* trying
> C2H2 / O2 mixtures, or is it just general prudent advice
> experimental testing?* *Please send me the reference. *
> We did some experiments trying to set off H2 / O2
> years ago and found that the mixture seemed much more
> ignite than we had expected. We were working both with gas
> also with pastes of solid O2 in liquid H2, which could
> a very serious explosion. We were not able to ignite the
> static charge found on a hair comb or by rubbing a balloon
> A high energy spark plug gave reliable ignition as did sparks
> an energetic 'tesla sources.
> Can you give a reference to look up for the enegry
> will produce ignition C2H2 and O2 mixtures pleae?
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