I now have several grams of Uranyl Nitrate Hexahydrate and think why not try. I have found two different fomulae for the sensitizer, but both lead to doubt. . The first sensitizer is simply the Uranium in water (developed in Potassium Ferricyanide) and I'm having a hard time believing that it could produce much of an image at a reasonable speed. The second formula has Ferric Ammonium Citrate with the Uranium and also developes in Potassium Ferricyanide. It sounds like cyanotype with my hard to acquire chem doing nothing. Can anyone help?