Archived posting to the Leica Users Group, 2000/03/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Ernie - thanks - I made it through CHEM 101 and 102, back in '67 or '68. But these chemical names come back from when I was tasked with being an advisor to a student organization - so I chose the camera club in our dorm (I was a hall advisor in a 600 person dorm when in grad school). I posted later a URL for the MSDS's - going through those (many from the great yellow father in rochester) brought back memories of mixing gallons of developers. Tim K - ----- Original Message ----- From: "Ernest B. Ferro" <eferro@tbscc.com> To: <leica-users@mejac.palo-alto.ca.us> Sent: Monday, March 27, 2000 7:44 PM Subject: [Leica] RE: Leica Users digest V16 #74 >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