TF3 Formula - Where did I get this?

Discussion in 'B&W: Film, Paper, Chemistry' started by fhovie, Feb 1, 2004.

  1. fhovie

    fhovie Subscriber

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    Greetings:

    I think I just went crazy and wasted a bunch of chemical - I wrote down this formula for TF3 and I don't remember where I got it from or it I imagined it. Instead of the published recipe I mixed:

    800ml Ammonium Thiosulphate
    50 g Sodium Sulfite
    60 g Boric Acid

    Is this a variation or do I need to dispose of this?
     
  2. glbeas

    glbeas Member

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    Drop a cut leader into it and see if it works. Looks like a buffered rapid fix to me.
     
  3. fhovie

    fhovie Subscriber

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    More than that - will it kill a pyrocat stain and will it need a super long wash time - I have the published formula with Sodium Metaborate 5g instead of the Boric Acid
     
  4. john_s

    john_s Member

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    you need a little sulfite in it.

    sulfate isn't a preservative
     
  5. glbeas

    glbeas Member

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    He's right, and you should be able to just add the sulfite to the mix you already have and not waste it. Seeing how it wreaks havoc on pyrocat stain reserve it for prints.
     
  6. fhovie

    fhovie Subscriber

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    OOOPS

    That IS Sodium Sulfite - not sulfate - my typo on the post