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  1. #1

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    Removing silver stains?

    I have what I believe is a silver stain in the sink (kitchen) I use for washing prints. It's a faux-granite plastic sink.

    What can I do to deplete the silver and remove the stains?

  2. #2
    Ian Grant's Avatar
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    Dish cleaner, a bit of Potassium Permanganate & salt, wipe with strong fixer. Or Ferricyanide & Bromide, then strong fix. Bleach = Sofium Hypo Chlorite

    Should clean easily, even a kitchen cleaner mild abrasive.

    Ian

  3. #3

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    Wouldn't you know it; someone JUST gave me a small bottle of Potassium Permanganate!

    Don't ask....

    Thanks!

  4. #4
    Ian Grant's Avatar
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    I won't tell the Department of Homeland Security

    Ian

  5. #5
    Photo Engineer's Avatar
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    Test if first. Permanganate can leave a brown stain behind all on its own. It could be impossible to get that stain out of the sink.

    Another route would be to use plain blix for color paper. It is rather harmless to most everything and any stain it leaves behind can be removed by either EDTA or Dequest.

    PE

  6. #6
    trexx's Avatar
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    I had/have a similar situation. used PP and fix. It appeared to have gone away but has returned a year later. HAve tried Farmers reducer and I'll let you know in another year if it is still gone.
    D-76 is a standard developer, although not one I use.
    Ansel Adams - The Negative

  7. #7

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    Quote Originally Posted by Photo Engineer View Post
    Test if first. Permanganate can leave a brown stain behind all on its own. It could be impossible to get that stain out of the sink.

    Another route would be to use plain blix for color paper. It is rather harmless to most everything and any stain it leaves behind can be removed by either EDTA or Dequest.

    PE
    Photographers' Formulary Lists 4 Kinds of EDTA when I do a search.

    Ferric Ammonium EDTA
    Ferric Sodium EDTA
    EDTA Disodium Salt
    EDTA Tetrasodium Salt

    Which do I purchase to remove blix stains?
    Darkroom Equipment : 2X Beseler 23C Color Enlargers, Jobo ATL-1, Jobo CPE-2 Plus and Kreonite ProMate 16" Roller Transport Processor

    Quote Originally Posted by Greg Davis View Post
    I could shoot digital and email the image to a lab and get a digital C-print. But I want to shoot and print in my darkroom. I was born in the wrong century.

  8. #8
    Photo Engineer's Avatar
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    The blix itself is a mixture of Ferric Ammonium EDTA + Ammonium Hypo. To remove stains from the blix itself, wash the area with some EDTA Disodium Salt.

    PE



 

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