Xtol and Part B

Discussion in 'B&W: Film, Paper, Chemistry' started by Bruce Osgood, Aug 12, 2003.

  1. Bruce Osgood

    Bruce Osgood Membership Council Council

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    I was going to brew an Extol Substitute to see what I would get but reading various posts I see prepackaged Extol has a part B. My formula from Jacks Chemistry Pages does not have a part B.

    Is part B of the Kodak product ment to be added at the time of brewing because if it were packaged as a single unit it would have an adverse reaction in the dry form, but if mixing from scratch for (near) immediate use, all ingredients may be mixed at the same time?

    TIA
     
  2. Jorge Oliveira

    Jorge Oliveira Member

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    Many packaged formulas are two parts to have a long shelf life.
    usually part 1 has the developing agents and some sulphite, part two the alkali and whatever.

    So, Xtol and homebrew formulas shall be (?) equivalent when mixed in water.

    Jorge O
     
  3. glbeas

    glbeas Member

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    How do you find Jacks Chemistry Pages? A web search came up dry for me.
     
  4. Jorge Oliveira

    Jorge Oliveira Member

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  5. Bruce Osgood

    Bruce Osgood Membership Council Council

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    http://www.jackspcs.com/

    Very Handy
     
  6. glbeas

    glbeas Member

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    Thanks Bruce!