Bisulfate or Sulfuric for Bichromate Bleach?

dancqu · Mar 26, 2005

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

donbga · Mar 26, 2005

dancqu said:
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

andrewfrith · Mar 27, 2005

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%.

Bisulfate or Sulfuric for Bichromate Bleach?

dancqu

donbga

andrewfrith

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