Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,553   Posts: 1,544,947   Online: 771
      
Results 1 to 3 of 3
  1. #1

    Join Date
    Sep 2002
    Location
    Willamette Valley, Oregon
    Shooter
    Medium Format
    Posts
    3,684

    Bisulfate or Sulfuric for Bichromate Bleach?

    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. #2
    donbga's Avatar
    Join Date
    Nov 2003
    Shooter
    Large Format Pan
    Posts
    2,078
    Quote Originally Posted by dancqu
    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
    Even though I use Sulfuric I do think bisulfate will work also.

    Perhaps others have experience with bisulfate.

    Good luck,

    Don Bryant

  3. #3

    Join Date
    Oct 2003
    Location
    N.california
    Shooter
    8x10 Format
    Posts
    99
    Images
    5
    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%.



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin