uranium

Nze christian (113410.2751@compuserve.com)
Fri, 21 Nov 1997 11:35:59 -0500

Bob Schramm,
i've allready try the formula you give and don't have enough contrast with
the first one(pure uranium)
here are all the formula i have :

first one reddish one
water 100ml
urane nitrate 7.2gr
copper nitrate 2 gr
a little pinch of sodium carbonate
devellop with a 8% potassium ferricyanide solution

second sepia print
water 100ml
urane nitrate 12.7gr
copper nitrate 0.8 gr
a little amonia ( i don't know how i don't try yet)

devellop with a2.5% potassium ferricyanide solution

3.uran and silver
water 100ml
urane nitrate 20gr
silver nitrate 6 gr

develop with
water 200 ml
sulfuric acid few drops
ferrous sulfate 16 gr
tartaric acid 8 gr

and the last one
water 125ml
urane nitrate 22gr

develop in 2% potassium ferricyanide solution for red prints
for a black picture after devellop and wash put the print in
water 100ml
ferric perchlorure 5gr
chloridric acid 1ml

or for violet print don't devellop in potassium ferricyanide solution
but in a 0.5% gold chloride solution 8 seconds

i gonna try this formula i find the last week but if someone ever try them
please what's happen

nze christian