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  1. #1
    htmlguru4242's Avatar
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    Silver Nitrate Paper?

    Today, while i was working in the chem. lab, I accidentally spilled some silver nitrate on a piece of paper (argh). I set it aside, forgetting that it was sensitive to light. About an hour later, I noticed that it had darkened significantly under the fluorescent lights.

    That got me wondering; would it be possible to produce images on paper coated with only silver nitrate? I know it would be incredibly slow, but is there any reason why it wouldn't work?

  2. #2
    Photo Engineer's Avatar
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    Yes, it would work, but IDK what the tone scale would be like.

    PE

  3. #3

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    silver nitrare alone reacts with organic compounds, which are found in paper too

  4. #4
    htmlguru4242's Avatar
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    Hmm, Fulvio, does that mean that its perhaps not reacting with the light, and, instead, with the paper?

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    The reaction products of silver and many other compounds are light sensitive to some degree, and form silver metal.

    The problem is, how well it does it imagewise and how 'fixable' the image is.

    PE

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    Just add ferric oxalate and you have kallitypes.
    The soul never thinks without an image.
    - Aristotle

  7. #7

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    Quote Originally Posted by htmlguru4242 View Post
    Hmm, Fulvio, does that mean that its perhaps not reacting with the light, and, instead, with the paper?
    No. I think it was reacting to light. My understanding is that AgNO3 is not light sensitive until it is in contact with organic compounds. I believe Fulvio was saying there was organic compounds in the paper to make it light sensitive.

  8. #8
    Ole
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    I'm pretty sure that this must have been tested and published by someone - Talbot? Herschel? Anyway one of those 19th century people who tried absolutely everything.

    I'm also fairly certain that there are major drawbacks to nitrate as compared to halides, or it would be a "standard alternative process".
    -- Ole Tjugen, Luddite Elitist
    Norway

  9. #9
    George Papantoniou's Avatar
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    Look under "Salted paper prints" and you'll find something similar.

  10. #10
    htmlguru4242's Avatar
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    I definitely know about the salted paper prints with AgCl, along with a bunch of other things that Talbot and others tried. (I attempted to do a salted paper print or two back in high school it didnt come out too well).

    And Ole, I thought that I'd heard something about the early experimenters doing this, and im SURE that they did, seeing, as you said, that they tried pretty much everything. I'm just surprised that I haven't read about it anywhere.

    I think one of the major disadvantages would be that its very very slow.

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