Options for C-41 at home without formaldehyde but with separate bleach and fix?

Discussion in 'Color: Film, Paper, and Chemistry' started by B&Wpositive, Aug 25, 2010.

  1. B&Wpositive

    B&Wpositive Member

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    What are my options? I hear that it is possible to get away with substituting a formaldehyde-free option for the traditional stabilizer for newer C-41 films. Is this true? What is the solution that one substitutes? As of right now, I get my C-41 processed via minilab, so I'm assuming my film hasn't gone through the formalin stabilizer. Making the transition to home processing, I see the new Rollei kit offers a separate bleach and fix, which is great. But what could I substitute for the stabilizer, which contians a known carcinogen? Is "Kodak Final Rinse" a valid substitute and is it free of formaldehyde? Or is there something else I should be looking for?

    What about getting rid of the stabilizer? Once I renew my membership, are there people on apug to whom I could sell the Rollei Stabilizer who would be looking for it? How about shipping and shipping cost of hazardous chemicals?
     
  2. 2F/2F

    2F/2F Member

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    Stabilizer is not used any more. It is formalin-free Final Rinse.

    Don't drink your chemicals, wear gloves if you want, and dispose of them at a proper facility, and you and the environment will be fine even with the older Stabilizer.
     
  3. MattKing

    MattKing Subscriber

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    Check this thread for the differences between older Kodak's Stabilizer, and it's current Final Rinse:

    http://www.apug.org/forums/forum40/78678-c-41-final-rinse.html#post1022373

    And here is the MSDS information for the new Rollei kit. The stabilizer information starts on page 31. I am not a chemist, and therefore am unable to tell you whether the compounds listed therein are different from formalin, but they don't say that they are formalin:

    http://www.freestylephoto.biz/pdf/msds/compard/Rollie_Compard_Digibase_C_41_Kit.pdf

    I would point out as well that just because Kodak called the older chemical Stabilizer, doesn't mean that anyone else's stabilizer contains the same chemical components - it is probably more of a general, descriptive term.
     
  4. hrst

    hrst Member

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    Yes, the current official formula doesn't contain formalin anymore, so probably the Rollei kit doesn't either.

    Furthermore, the formalin content of stabilizer solution was so low that it doesn't cause any real problems in normal, safe usage. Formalin exists almost everywhere today and is a source of allergic reactions, more than a carsinogen. It's used in some fabrics in furniture etc., so if you want to avoid it, you have to be very careful. Good thing in stabilizer is that you KNOW it has a minute amount of formalin so you can be careful; the "hidden" formalin around us is, though, a real problem.
     
  5. Mike Wilde

    Mike Wilde Member

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    Put it in perspective. I know the hazards of formalin, but that said, the 1L bottle I bought about 7 years ago has had perhaps 12-15mL draw from it to date, and I do use the solutions regularly. A 1L batch of photo flow with 1mL of formalin in it as a final rinse (that I use for all c-41 home brew processed, and b&w processed, and e-6 home brew processed) will last a very long time before the wetting characteristics begin to break down and it has to get tossed.

    My working space has good exhaust extraction, and I am sure to have the exhaust fan on high, and my full face shield, filter mask, lab coat and nitrile gloves on when I mix up the less than wonderful for your health chems associated with many colour processes & certain b&w developing agents.
     
  6. tiberiustibz

    tiberiustibz Member

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    The Kodak process uses no formaldehyde and a separate bleach and fix.
     
  7. B&Wpositive

    B&Wpositive Member

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    I looked at the MSDS for the stabilizer. I'm not familiar with the organic compound that is listed. Is it certain that this isn't something that reacts with another chemical to form an aldehyde?
     
  8. hrst

    hrst Member

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    No it isn't.