[pure-silver] Iodide in emulsions...
- From: Ray Rogers <earthsoda@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Fri, 27 Nov 2009 06:42:47 -0800 (PST)
--- On Wed, 11/25/09, Richard Knoppow <dickburk@xxxxxxxxxxxxx> wrote:
Iodide
> used to be found mostly in film emulsion but it is now also
> found in paper emulsions especially variable contrast
> emulsions.
Hi Richard,
Sorry to have to call you on this, but on what basis do you make this claim?
There is to my knowledge, no relatonship between iodide and variable contrast
paper emulsions.
Iodide does find some use in paper emulsions, and has for many years in certain
products, and, although this fact was not that well known, it was not a really
a secret either; it was just present in very small quantities that did not draw
much comment.
Where did you get the notion that iodide was in some way related to variable
contrast?
I only bring this up in hopes you might actually have a source for that claim.
Ray
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