Alkaline Fixers and Local Bleachin

Discussion in 'Darkroom Equipment' started by hortense, Jan 1, 2005.

  1. hortense

    hortense Member

    Jun 17, 2004
    Riverside, C
    Large Format
    Still getting aquainted with alkaline fixers. My normal local bleaching process uses 1/8th tsp. KFeCN dissolved in 21 ml. Water + 21 ml. Hypo
    + 2 drops of PhotoFlow, a brush and a small stream of water (a la Barnbaum). Periodically, as required, I soak the print in my then ACID rapid fixer for 30 or so second before continuing to bleach. Then, soad print in fixer for 1-minunte, followed by a wash aide, then washing.
    1. When using ALkALINE fixer, should I periodically dip print in water or alkaline fixer (and final fix in alkaline fixer)? I assume no need for wash aide if using alkaline fixer?
    2. I would like to understand the chemistry regarding why after bleaching print must be put in fixer (rather than just a thorough water rinse)?
    Thanks for your help in advance.