Ilford Hardener

Discussion in 'B&W: Film, Paper, Chemistry' started by Marc Leest, Jun 17, 2008.

  1. Marc Leest

    Marc Leest Member

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    Hello,

    I still have a bottle of Ilford Hardener. What is it chemically ? I might use it for some alt. processes.

    thanks, Marc
     
  2. Ian Grant

    Ian Grant Subscriber

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    Should be Potassium alum, or similar. Not much use for anything else.

    Ian
     
  3. clay

    clay Subscriber

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    Not sure about the Ilford product, but if you check the MSDS for the product, it will give you a hint what is in it. Kodak's hardener is primarily glutaraldehyde, which is useful in hardening gelatin sizing if you happen to be doing gum dichromate printing.