Ammonium chloride
A chemical used in toners and bleachers.
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More Photographic Terms ...
-Ammonium chloride - chemical used in toners and bleachers.
-Ammonium persulfate - chemical used in super-proportional reducers.
-Ammonium sulfide - pungent but essential chemical in sulfide or sepia toning.
-Sal-ammoniac - ammonium chloride. used in some high speed developers.
-Sandwiching - combination of two or more negatives or film positives in the negative carrier or masking frame when printing or enlarging.
 See also: Photograph, Toner, Toners, Bleach, Speed
  
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