Archived posting to the Leica Users Group, 2003/08/13

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Subject: Re: [Leica] How do you dispose of your darkroom chemicals?
From: Karen Nakamura <mail@gpsy.com>
Date: Wed, 13 Aug 2003 08:46:51 -0500
References: <000101c3618e$15b91fd0$6401a8c0@dorysrusp4> <009801c3619b$a8841740$6401a8c0@lan.artvader.com>

>Interesting answer...but...What are the consequences if you hace a septic
>disposal system?

For B&W, the most toxic thing for your family is the used fix. The 
silver will leach out. You can buy silver recovery devices for pretty 
cheap at Porters.

For color, the most toxic thing is the formaldehyde used in the final 
rinse (along with the silver in the fix). I'd try to retain the rinse 
and bring it to your local toxic waste center.

Karen

ps. You can call the manufacturers and ask for their Material Safety 
Data Sheet (MSDS). They usually have toxicology reports in it.


- -- 
Karen Nakamura
http://www.photoethnography.com/ClassicCameras/
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In reply to: Message from "Don Dory" <dorysrus@mindspring.com> (RE: [Leica] How do you dispose of your darkroom chemicals?)
Message from "Jon" <jon.stanton@comcast.net> (Re: [Leica] How do you dispose of your darkroom chemicals?)