Bisulfate or Sulfuric for Bichromate Bleach?

Discussion in 'Alternative Processes' started by dancqu, Mar 26, 2005.

  1. dancqu

    dancqu Member

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    Is there any reason to use the one over the other? I'm considering
    the Liam Lawless method for makeing enlarged negatives. I think
    his process may be the salvation of some thin low contrast
    negatives I've waiting.

    Patrick Dignan indicates either will work and I see bichromate
    formulas which do use the bisulfate. Dan
     
  2. donbga

    donbga Member

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    Even though I use Sulfuric I do think bisulfate will work also.

    Perhaps others have experience with bisulfate.

    Good luck,

    Don Bryant
     
  3. andrewfrith

    andrewfrith Subscriber

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    i've only used sulfuric and it seems to work well...i had trouble locating sulfuric but in the end got it from a car battery shop, battery acid i believe is a concentration of around 35%.