Ewesly / Holographic Formulae / Mercuric Chloride

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Bleach solution

20 g Mercuric Chloride
20 g Potassium Bromide
One litre water


Bleaching time: One and a half times the time it takes to clear.

Temperature:  20C              Agitation:  Intermittent

Although some people swear by it in a develop-wash-fix-wash-bleach in mercuric chloride-wash-refix-wash-rebleach in the ferricyanide 30-wash-photo-flo regime, it offers no improvement over anything else listed in this formulary. It is poisonous, and permanence of the holograms is questionable

Shelf life: This stock solution lasts practically indefinitely.

Source: Integraf Handout, circa late 1970's.