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  1. #21

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    Quote Originally Posted by JBrunner View Post
    It is said by garlic eating helmsmen that acid adversly affects stain, and that a water stop and alkali fixer such as TF-4 is the thing to do.

    (That's what they say in the sniggering corner near the onion pot.)
    (No Vampires in the sniggering corner - I bet.)
    Tom Hoskinson
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  2. #22
    nick mulder's Avatar
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    The use of Ilford Rapid fix was recommended here:

    http://www.apug.org/forums/forum42/4...y-negs-pd.html

    anyhoo, a stain there be !
    Cleared the bowel problem, working on the consonants...

  3. #23

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    I have great success developing with Wd2d pyro developer and fixing in Kodak Rapid Fix, just omitting the hardener (which comes in a separate bottle) from the fix mix.

  4. #24
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    Quote Originally Posted by Tom Hoskinson View Post
    http://www.ilford.com/html/us_english/sds/sds.asp

    http://www.freestylephoto.biz/pdf/ms...L_RAP_FIX_.PDF

    Based on the Ilford MSDS information, it appears that Ilford HYPAM and Ilford Universal Rapid Fixer are the same fixer.

    Ilford Universal Rapid Fixer contains Ammonium Thiosulfate, Sodium Sulfite, Sodium Acetate, Boric Acid and Acetic Acid. The pH of the Ilford Rapid Fixer concentrate is listed as 5.1 (thus acidic)

    Recall: Acid pH is less than 6.5
    Neutral pH is 6.5 to 7.5
    Basic pH is greater than 7.5

    If you wish to increase the pH (i.e. make the fixer alkaline), just mix in Borax or Sodium Metaborate until the pH reaches the desired level (i.e. approx. neutral pH when the fixer stops fizzing - then add a few more grams of alkali). Otherwise, you would need a pH meter or pH indicator paper to accomplish this.
    What grade of Borax? (dUcks and covers)

  5. #25
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    Neither borax nor metaborate cause fizzing. They do not contain the carbonate ion.
    Gadget Gainer

  6. #26

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    Quote Originally Posted by gainer View Post
    Neither borax nor metaborate cause fizzing. They do not contain the carbonate ion.
    Gainer is right, of course.
    My Bad!
    Tom Hoskinson
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  7. #27

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    Quote Originally Posted by JBrunner View Post
    What grade of Borax? (dUcks and covers)
    I use 20 Mule Team Borax from the grocery store for mixing D-76 and fixers. I've never had any problems with it.

    10 to 15 grams of Borax per liter of working fixer solution should do it, or you can add Borax bit by bit and check with litmus paper until the solution becomes alkaline,

    Sodium Metaborate is a good option - but may be hard to find outside the USA.
    Tom Hoskinson
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  8. #28

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    Quote Originally Posted by PHOTOTONE View Post
    I have great success developing with Wd2d pyro developer and fixing in Kodak Rapid Fix, just omitting the hardener (which comes in a separate bottle) from the fix mix.
    Both Kodak Rapid Fix and Ilford Rapid Fix are acid. Consider adjusting the pH of the working fixer bath to alkaline by adding Borax (Sodium Tetraborate) or Sodium Metaborate. Try 10 to 15 grams of Borax per liter of working fixer.
    Tom Hoskinson
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    Everything is analog - even digital :D

  9. #29

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    [QUOTE=Tom Hoskinson;578682]I use 20 Mule Team Borax from the grocery store for mixing D-76 and fixers. I've never had any problems with it.
    QUOTE]

    SHHHH! The borax police may be watching!!!

  10. #30
    nick mulder's Avatar
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    Quote Originally Posted by Tom Hoskinson View Post
    Sodium Metaborate is a good option - but may be hard to find outside the USA.
    The rest of world does actually have access to things like um, you know, chemicals and stuff... Sodium Metaborate is the stock soln. B and I still have some unmixed - off to get me some litmus thingies
    Cleared the bowel problem, working on the consonants...

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