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  1. #1
    Jerevan's Avatar
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    Saltwater as fixer

    It's just one of those things I heard somewhere:

    Wasn't one of the first methods of fixing paper and negatives was by using saltwater? Does anyone have any clue what kind of concentrations you'd need and if it would be possible to fix, say a roll of Tri-X in it?

    If not, is there any other household stuff that could serve as fixer? Just curious..
    “Do your work, then step back. The only path to serenity.” - Lao Tzu

  2. #2
    Muihlinn's Avatar
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    I think you've read about using saltwater as an efficient washing agent instead of using it as fixer.
    Luis Miguel Castañeda Navas
    http://imaginarymagnitude.net/

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    I've heard the saltwater as fixer thing too ( independent of the washing use )...I also read that it either never worked very well at all anyway, and/or won't work at all with modern films

    the only "household" chemical I know of that might work would be the stuff you add to your aquarium to get rid of chlorine...I think that has sodium/ammonium thiosulfate in it

  4. #4
    Jerevan's Avatar
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    Yes, I think I've read too much about Henry Fox Talbot lately... Looked it up now; he used saltwater as fixer first, but with little success. Later on, John Herschel suggested the use of hypo to fix pictures.
    “Do your work, then step back. The only path to serenity.” - Lao Tzu

  5. #5
    ath
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    You might want to read this thread on pn.
    Regards,
    Andreas

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    Jerevan's Avatar
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    Yup, one myth down - several more to go...
    “Do your work, then step back. The only path to serenity.” - Lao Tzu

  7. #7
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    Hey, I just deleted my post because I realized you were asking about NaCl as a fixing agent, while I was referring to NaCl as a hypo-clearing agent, so it wasn't applicable to your question!
    Using film since before it was hip.


    "One of the most singular characters of the hyposulphites, is the property their solutions possess of dissolving muriate of silver and retaining it in considerable quantity in permanent solution" — Sir John Frederick William Herschel, "On the Hyposulphurous Acid and its Compounds." The Edinburgh Philosophical Journal, Vol. 1 (8 Jan. 1819): 8-29. p. 11

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  8. #8
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    Apug's own (Reinhold) posted this on his blog recently that high amounts of salt (300g/l) and time (2-3 days) will clear film:

    http://caffenol.blogspot.com/2012/04...m-est.html?m=0

    Might have to try this out, I have a spare plastic reel/tank that might work. I wouldn't test with my nice Hewes as the idea of ss in water for days worries me. Also wonder if the emulsion might float off the base after such a long soak
    Andy

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    Quote Originally Posted by zsas View Post
    Also wonder if the emulsion might float off the base after such a long soak
    That's how it clears the film!

    Mark Overton

  10. #10

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    Fox Talbot used salt as a stablilizer not as a fixer. In this respect he was only partially successful in preventing his images from degrading with exposure to light.
    A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.

    ~Antoine de Saint-Exupery

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