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

[Christina Anderson]

Hi Alberto,

He is doing it on his own (I don't even know how to do it) and found some online somewhere from a person (Craig's LIst or whatnot). He researched it a lot so I assumed he also researched the safety because he is a very conscientious mature person, but I will forward your comments to him and see what he says.

It isn't something I teach...but the orange color (very peachy) is quite attractive. He got that orange color also last semester with Fotospeed Lith very hot, Fomatone paper, and I think gold over sepia toner. One of his liths done gold over selenium is in the Lith chapter of the Experimental Workbook but unfortunately some images in that book printed off color and dark (still trying to figure out why some did and some didn't before doing the next book) so you really don't get to see the beauty of that print, but imagine it to be quite orange.

Chris

Christina Z. Anderson
christinaZanderson.com

On Feb 20, 2012, at 12:05 AM, Alberto Novo wrote:

>> ...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
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