Sodium Ascorbate for PCTEA??

Discussion in 'B&W: Film, Paper, Chemistry' started by LeNoirPhotog, Jun 30, 2009.

  1. LeNoirPhotog

    LeNoirPhotog Member

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    I got plenty of sodium ascorbate but only a little ascorbic acid. So can i substitute ascorbic for ascorbate?
     
  2. MikeSeb

    MikeSeb Member

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    Yep. Can't recall the conversion factor right off hand; you should be able to google it if someone doesn't chime in here.
     
  3. BradS

    BradS Subscriber

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    I thought that there was an alkali involved...

    something like...

    sodium hydroxide + ascorbic acid ---> sodium ascorbate

    or, maybe it was...

    Borax (sodium something borate) + ascorbic acid ---> sodium ascorbate

    anyway, I think there is more to it than a simple multiplicative factor.
     
  4. dancqu

    dancqu Member

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    Can you substitute ascorbate for ascorbic, or visa versa for
    that matter? NO way. One is quite acid while the other
    is more nearly neutral. Dan
     
  5. Jordan

    Jordan Member

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    No, not without titrating the pH of your working developer back down to its expected level before use.
     
  6. LeNoirPhotog

    LeNoirPhotog Member

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    OK thanks everyone
     
  7. gainer

    gainer Subscriber

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    Moreover, I doubt you'll get much sodium ascorbate to dissolve in TEA.
     
  8. Alan Johnson

    Alan Johnson Subscriber

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