Archived posting to the Leica Users Group, 2000/03/27

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Subject: [Leica] RE: Leica Users digest V16 #74
From: "Ernest B. Ferro" <eferro@tbscc.com>
Date: Mon, 27 Mar 2000 19:44:36 -0500

>Date: Sun, 26 Mar 2000 17:21:36 -0500
>From: "Timothy R. Kuntz" <covbldrs@usit.net>
>Subject: Re: [Leica]  PYRO

>Richard - thanks for the list.  In thinking this just a little further, the
first question I'm >>going to be asked and which we'll start looking for are
the MSDS's (Material Safety Data >Sheets).  These are available from the
manufacturer on request.  Therefore, (in addition to what >the heck is
EDTA?) I'll start a data base of the chemical names,
manufacturers/suppliers, and >get a copy of the MSDS's, and list a
recommended PPE (personal protective equipment).  I can >.easily get
vendor's names & so forth from our HSE department.

>build the list:

>Following are the chemicals involved:
>        Metol
>        Sodium Bisulfite
>        Pyrogallol
>        EDTA
>        Sodium Metaborate

>Thanks,

>    Tim K

Tim:
	It's been 20+ years since I graduated with my chemistry degree but if
memory serves, EDTA stands for ethylene diamine tetraacetic acid.  It's a
chealating agent, something used to tie up metal ions.
Ernie