>>> cwrigh2@twcny.rr.com 08/25/05 10:41 AM >>>
...
Instead of the expensive potassium cyanide (which is also deadly
poisonous), use the (somewhat) safer and cheaper sodium cyanide.
Christopher,
Is there any difference in the color of the wetplate image if the sodium
cyanide is used? I've read and observed that sodium thiosulfate gives a
more neutral-silver color than the potassium cyanide. Does the use of
sodium cyanide retain the coffee color produced by K cyanide or is it
more similar to the hypo result?
Joe
Received on Thu Aug 25 09:19:02 2005
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