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  1. #1
    Jeremy's Avatar
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    Green Sludge in Pot Ox Developer

    I had some green sludge in my potassium oxalate developer for my pd prints yesterday. Any ideas on what it is? My thought is that it is crystalized pot ox because I had the developer in an open tray for about 4 hours, definitely long enough for H2O to evaporate and the pot ox to leave solution and precipitate.
    Let's see what I've got in the magic trash can for Mateo!

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  2. #2
    Joe Lipka's Avatar
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    PO developer returns to a crystal state, not a sludge. There may be some excess palladium metal in the developer which can be removed by filtering through a coffee filter. If you add some more water and heat it up a bit, the PO will go back into solution. If anything remains it might be Pd metal. Then again, I don't know what the quality of your water is.
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  3. #3
    Kerik's Avatar
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    Jeremy,

    This is normal. Just filter it out and move on. No harm done.
    Kerik Kouklis
    Platinum/Gum/Collodion
    www.kerik.com
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