Judy,
Your husband bought it 20 years ago to fix a dent in the car. You should have a can of plyester rsin that is sitting nest to it. Ask him if he stil indends to fix tnat dens in the car that you sold 10 years ago? The peroxide is not an alt chemical that I know of.
Marek
> Date: Thu, 4 Sep 2008 22:06:10 -0400
> From: jseigel@panix.com
> Subject: Re: gum preservatves
> To: alt-photo-process-l@usask.ca
>
> Thanks, Dirk-Jan, for the heads up -- I wasn't going to use it, but I was
> probably going to dispose of it casually. However it really is a small
> amount -- maybe 15 cc... Meanwhile, and also -- I haven't the foggiest
> idea where it came from or how it got into my cabinet, where it has rested
> AT LEAST 10 years...
>
> J.
>
> On Thu, 4 Sep 2008, Dirk-Jan Treffers wrote:
>
> > Judy,
> >
> > MEK peroxide is a synonym for methyl ethyl ketone peroxide. Seriously
> > dangerous stuff:
> > http://en.wikipedia.org/wiki/Methyl_ethyl_ketone_peroxide
> > http://www.intox.org/databank/documents/chemical/methylep/cie345.htm
> >
> > I advise to not use this stuff, as thymol is a far safer preservative.
> > Or try the other options mentioned by others in this discussion list.
> > If I were you, I;d get rit of the bottle and hand it over to local
> > authoryties that collect chemical waste from households. Peroxides,
> > especcially those who have been on the shelf for several years, can be
> > very instable. Some of them even explosive. Not to scare you, of
> > course, just to give a warning to be carefull whith this stuff....
> > I've studies chemistry, and have seen more than one accident happen
> > whit chemicals that were disposed of in the inproper method, or used
> > in a way they shouldn't be. No serious damage came from these
> > accidents. But better be safe than sorry!
> >
> > kind regard,
> >
> > Dirk-Jan
> >
> >
> >
> > 2008/9/4 zphoto@montana.net <zphoto@montana.net>:
> >> Lemon juice does the trick and was Demachy's method in 1897.
> >> Chris
> >>
> >> ----- Original Message Follows -----
> >> From: davidhatton@totalise.co.uk
> >> To: alt-photo-process-l@usask.ca
> >> Subject: Re: gum preservatves
> >> Date: Thu, 04 Sep 2008 16:18:47 +0100
> >>
> >>> <p>
> >>> <br />
> >>> Hi Loris,
> >>> </p>
> >>> <p>
> >>> Is there any reason one can't add some acid to the mix,
> >>> Oxalic or citric say, to give an increase in printing
> >>> speed? You could have a non-smelling acidic mix then.. </p>
> >>> <p>
> >>> David H
> >>> </p>
> >>>
> >>
> >> Assistant Professor of Photography
> >> Photography Option Coordinator
> >> Montana State University
> >> College of Arts and Architecture
> >> Department of Media and Theatre Arts, Room 220
> >> P.O. Box 173350
> >> Bozeman, MT 59717-3350
> >> Tel (406) 994 6219
> >> CZAphotography.com
> >>
> >>
> >
> >
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