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  1. #1

    Join Date
    Dec 2006
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    35mm
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    black residue in fixer bottles

    I was cleaning up in the darkroom since yesterday was our local haz-waste collection day. I tossed a couple of old plastic bottles that had been storing used fixer. I've noticed that black residue forms on the bottoms of these bottles. Is this silver settling out of solution or something else?

    I've got a new bucket for collection and may try to implement some silver recovery.

  2. #2
    Ian Grant's Avatar
    Join Date
    Aug 2004
    Location
    West Midlands, UK, and Turkey
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    Yes it's colloidal silver. Why not buy a Silver Magnet from jnanian.

    Ian

  3. #3

    Join Date
    Sep 2011
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    Medium Format
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    129

    residue

    What does the Silver Magnet do? do u collect and sell the silver?



 

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