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

[eric nelson]

The uranyl nitrate I have is very difficult to get airborne as it is a
solid crystal as opposed to a powdery chemical.
eric

On Mon, Feb 20, 2012 at 1:05 AM, Alberto Novo <alt.list at albertonovo.it>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
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