Agfa Neutol Plus paper developer formula

Discussion in 'B&W: Film, Paper, Chemistry' started by Loose Gravel, May 21, 2005.

  1. Loose Gravel

    Loose Gravel Member

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    Anybody know the formula for this developer?
     
  2. Tom Hoskinson

    Tom Hoskinson Member

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    It is a Agfa proprietary formula based on iso-ascorbic acid (instead of hydroquinone).

    The newly reorganized Agfa does not have their Material Safety Data Sheets on their website.

    If you are looking for "mix it yourself" ascorbic acid based formulas, take a look at

    Ryuji Suzuki's DS-14 and DS-15 developers:

    http://silvergrain.org/Photo-Tech/print-dev-recommend.html

    Also, take a look in the APUG Chemistry Recipes.
     
  3. srs5694

    srs5694 Member

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    Another "mix it yourself" ascorbic acid paper developer is E72, which is an ascorbic acid variant of D72/Dektol. Here's one URL with the formula:

    http://www.stanford.edu/~cpatton/yingui/e72.htm

    I believe I've seen references to it being possible to substitute metol for the phenidone, but you need ten times as much metol. D72 actually uses metol, FWIW.

    Many of Patrick Gainer's formulas can also be used for paper. He covers this in one of his early articles:

    http://unblinkingeye.com/Articles/VitC/vitc.html

    Note that I've not (yet) tried any of these, so I'm not endorsing them or saying they're better than DS-14 or DS-15. I'm just tossing them out as alternatives.
     
  4. john_s

    john_s Subscriber

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  5. psvensson

    psvensson Member

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    Neutol Plus puzzles me. I've found it tough to make an ascorbic acid or ascorbate paper developer that gives a full d-max on MGIV without adding lye. Carbonate just doesn't seem to do it.