Re: silver, copper and fixer deposits

Hi:
I read somewhere that copper used in one of the 3 common solutions in the
darkroom causes sulpherdioxide gas wich causes headaches, drowsyness, and
other side effecs. Why don't you e-mail Ilford's saftey people? They're
nice.
Dean

>Hello all,
>
>Is is possible to use copper scraps to plate out silver from spent fixer?
>
>There seems to be a mild attack on the copper if it is placed into spent
>fixer.
>I am almost tempted to try copper plate etching for intaglio printing plates
>using the fixer as a mordent.
>
>I am have held off due to the potential of other by-products... my knowledge
>of chemistry is really rusty.
>
>Is there anyone on the list with chemistry hints, or a resource book that can
>steer me in the right direction. I thank you in advance.
>
>mr. nelson
>marshfield, wi 54449
>
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Dean Lastoria
Admissions Assistant
(604) 291-3224
dvlastor@sfu.ca
Received on Tue Feb 12 15:50:03 2002