Kodak Rapid Fixer storage life.

Discussion in 'Kodak' started by Jean-David Beyer, Jun 6, 2008.

  1. I was wondering about buying a cubitainer of part A of Kodak Rapid Fixer
    instead of mixing F-9 fixer all the time. But sometimes I do not use it very
    fast, so perhaps I should get the smaller size.

    How long does the stuff last, unmixed, in the cubitainer? I have great
    difficulty finding this information on Kodak's web site. They tell me the
    lifetime of working solutions in an old J-1, but that is not available
    anymore, and it does not tell me what I want to know.
     
    Jean-David Beyer, Jun 6, 2008
    #1
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  2. FWIW: I use Arista rapid fixer and a 1 gallon jug lasts about
    1 1/2 years before the (now) mostly empty jug starts to throw
    yellow sulfur. It might last longer in the 'fridge, but I
    have never tried keeping it there. TTBOMK, most all modern
    "Rapid" fixers are ~60% ammonium thiosulfate with a pixie
    dust of hardeners and acidifiers/buffers.

    At the time I investigated Arista was the cheapest fixer
    available. I don't think there is any advantage to spending
    extra money for boutique fixer.
     
    Nicholas O. Lindan, Jun 6, 2008
    #2
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  3. Jean-David Beyer

    Ken Hart Guest


    Years ago I had a darkroom in the garage (an outbuilding) that was only
    heated when I wanted to use it. The fixer settled out in a sort of 'angel
    hair' formation. Although this was probably the garden variety Kodak mix
    from a powder variety. I stand ready to be chastised for this comment!

    In recent years, I've gone to B&W chems that come in concentrate form and
    can be mixed as needed.
     
    Ken Hart, Jun 6, 2008
    #3
  4. Jean-David Beyer

    dan.c.quinn Guest

    I use a dry concentrate, sodium thiosulfate. It has unlimited life
    span.
    Used unadulterated, a quick to mix fresh fix at time of use, film or
    paper. Use it very dilute one-shot for archival results with one
    fix, film or paper. Dan
     
    dan.c.quinn, Jun 11, 2008
    #4
  5. I know, but for TMax films, I find F6 fixer is too slow and difficult to
    achieve complete fixing. Kodak recommend Repid Fixer. I have mixed up F9
    fixer in the past, but I am not sure how good my 100# drum of sodium
    thiosulfate is now that the garage roof sprung a leak and got water all over
    the drum (cardboard). I have a new roof now, but I do not really want to mix
    the stuff as F9 is not as fast as Rapid Fixer is said to be.
     
    Jean-David Beyer, Jun 11, 2008
    #5
  6. --

    Should last at least 5 years IF a hose with clamp or spigot were used
    when the containers was first opened & any air evacuated from the cube
    that may have gotten it at the time it was opened..

    Just be sure the date of manufacture is recent (There should be a four
    digit code indicating the year & week of manufacture on the side of
    the container or box.).

    This per experience when I was still active in photo finishing trade.

    Fixer will keep for a long time in sealed containers, air is the enemy
    of all photographic chemicals..

    Howard Bingham

    --
     
    Howard Bingham, Jun 12, 2008
    #6
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