Black pyrogallol?!?

Discussion in 'B&W: Film, Paper, Chemistry' started by dlbr, Dec 3, 2011.

  1. dlbr

    dlbr Member

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    I just got the fresh supply of pyrogallol from my local dealer, and it was all dark, nearly black. It look as crystaline powder, but black. Being no chemist, I could not argue with the guy, who kept telling me it is perfectly all right and that it should work no prob. Did you pyro guys think I should trust it or rather demand the replacement?

    Thanks for help.
     
  2. payral

    payral Member

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    Pyrogallol should be light grey (almost white) not black. I think you should sent it back.
    I include a picture of mine which is almost two years old stock
    Pyrogallol.jpg
     
  3. dlbr

    dlbr Member

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    Thanks a lot, that is what I would expect pyrogallol to be. I will ask for the replacement, then.
     
  4. Crashbox

    Crashbox Subscriber

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    Definitely not good, take it back.

    I still have some pyro that's well over 20 years old and it is still white or nearly so; it has been well-stored of course.
     
  5. c6h6o3

    c6h6o3 Member

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    Local dealer? for pyrogallol? where, pray tell, might that be?
     
  6. brucemuir

    brucemuir Member

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    I have a LIQUID PMK kit that is at least 7-8yrs new :tongue: and the rim of the bottle gets dark black which I assume is from oxidation.
    The liquid itself is still clearish and works fine.
     
  7. Gerald C Koch

    Gerald C Koch Member

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    You don't say how the pyrogallol was packaged. I have had problems with some developing agents packed in plastic bottles. I have had pyrogallol keep for many years in glass bottles. Some plastics allow oxygen to diffuse into the container. I would recommend getting your money back.
     
  8. dlbr

    dlbr Member

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    Dorapis, Prague, Czech Republic. Just puch it to google and you will see. I have this shop round the corner, which comes handy, though not without a downside ... :blink:.

    Anyway, the matter has been concluded - I have received the replacement, which seems fine and proper.
     
  9. c6h6o3

    c6h6o3 Member

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    I'd be in hog heaven if I could buy pyro around the corner.
     
  10. keithwms

    keithwms Member

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    Oxidized? Maybe it could still be saved. Or maybe the black is just because it hasn't been ground finely?

    I'd try a bit before sending it back.