Removing silver stains?

Discussion in 'B&W: Film, Paper, Chemistry' started by PeteZ8, Jul 2, 2009.

  1. PeteZ8

    PeteZ8 Member

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    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. Ian Grant

    Ian Grant Subscriber

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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. PeteZ8

    PeteZ8 Member

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

    Don't ask....

    Thanks!
     
  4. Ian Grant

    Ian Grant Subscriber

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    I won't tell the Department of Homeland Security :D

    Ian
     
  5. Photo Engineer

    Photo Engineer Subscriber

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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. trexx

    trexx Member

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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.
     
  7. RellikJM

    RellikJM Member

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    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?
     
  8. Photo Engineer

    Photo Engineer Subscriber

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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