[alt-photo] Uranotype (was: Re: Daniel Smith paper chart!)

[Alberto Novo]

> ...a former student who is doing the uranotype ...

I suppose it is Charles Burnett's process, using uranyl nitrate as sensitive 
substance. Though modern uranium salts are made from depleted uranium, I am 
wondering how you managed its safe use. The problem with uranium salts is, 
besides the radioactivity of the prints which is probabily comparabe to that 
from radon in a basement, the accidental breathing of its dust. This will 
carry radioactivity directly into the lungs, and this is the worst thing 
that would happen.
After some experiments with Obernetter cuprotype, I was tempted to try 
Burnetts' uranium-copper process (the resulting pigment is a mixture of 
uranium and copper ferrocyanide, both red) but the above considerations 
about its safe use and disposal made me give up. 

Alberto
www.grupponamias.com
www.alternativephotography.com/wp/photographers/rodolfo-namias-group