Re: Glycol

[Tass Mailing List <tass@mail.alembic.net>]

Date: Wed, 11 Oct 2006 14:15:58 -0500
From: Thomas F. Droege <droege@fastmail.fm>
To: Tass Mailing List <tass@mail.alembic.net>
Subject: Re: Glycol

Woops!  I bought Propylene Glycol, which I believe is safe.  Not the
stuff that you buy as pet safe anti-freeze as it has a lot of additives,
but I think the jug said USP or some such on it.

I have found from past bitter experience that anti-freeze makes printed
circuit boards **permantly** conductive.  At least nothing I found would
clean them.  So a few drops on a pc board and it goes in the trash.

Tom Droege

On Wed, 11 Oct 2006 11:44:09 -0700 (PDT), "Tass Mailing List"
<tass@mail.alembic.net> said:
> Date: 11 Oct 2006 08:43:52 +0100
> From: David Huen <smh1008@cam.ac.uk>
> To: Tass Mailing List <tass@mail.alembic.net>
> Subject: Re: Glycol
>
> On Oct 11 2006, Tass Mailing List wrote:
>
> >Date: Tue, 10 Oct 2006 20:03:13 -0500
> >From: Thomas F. Droege <droege@fastmail.fm>
> >To: tass@tass-survey.org
> >Subject: Glycol
> >
> >Dan is up putting Ethylene Glycol into the cameras.  Talk about a safe
> >chemical.  It is used in food.  They also use it in animals for some
> >purpose.  If Veterinarians feed it to missie's pudy cat you know it must
> >be safe.  However, in the past whenever I have put anti-freze in tom1 it
> >has leaked out through my bedroom ceiling.  Sigh!
> >
> I think there may be a confusion here between ethylene glycol and
> glycerol.
> If it is the former, as antifreeze tends to be, will certainly terminate
> your missus's cat like in this:-
>
> http://vetmedicine.about.com/od/diseasesandconditions/f/FAQ_antifreeze.htm
>
> It has been misused on various occasions in the past with toxic
> consequences on humans.
>
> http://en.wikipedia.org/wiki/Ethylene_glycol
>
> As its main route of toxicity is oral and it requires significant
> quantities to harm you, the contamination of your ceiling is unlikely to
> harm you but I would not treat the compound as benign.
>
> Best wishes,
> David
>
>
>
-- 
  Thomas F. Droege
  droege@fastmail.fm