Gentlemen, I am in need of some memory jogging.
While rummaging around looking for some Chromium Intensifier, I stumbled across three bottles of Mercuric Iodide, Red. For the life of me I fail to recall when I have this stuff. Seems to me it was to change the color cast of some papers (ie to remove the green) but I am grasping at straws truth be told.
Anyone recall this stuff, why, when and how to use it?
Thank you,
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