Oxidation of a ~1000Å sputter-deposited thorium thin film at 150°C in 100ppm of flowing oxygen in argon produces the long-sought solid form of thorium monoxide. Changes in the scattering length density (SLD) distribution in the film over the 700 min experiment measured by in-situ, dynamic neutron reflectometry (NR) shows the densities, compositions and thickness of the various thorium oxides la...

The reactivity of thorium-phosphido and thorium-arsenido bonds was probed using tert-butyl isocyanide, (t)BuNC. Reaction of (C5Me5)2Th[E(H)R]2, E = P, As; R = 2,4,6-(i)Pr3C6H2, 2,4,6-Me3C6H2 with (t)BuNC affords the first phosphaazaallene and arsaazaallene moieties with an f-element.

The high-pressure structural behaviour of a series of binary thorium compounds ThX (X = C, N, P, As, Sb, Bi, S, Se, Te) is studied using the all-electron full potential linear muffin-tin orbital (FP-LMTO) method within the generalized gradient approximation (GGA) for the exchange and correlation potential. The calculated equlibrium lattice parameters and bulk moduli, as well as the equations of...

One of the six selected concepts to be part Generation IV nuclear reactors is Supercritical Light Water Cooled Reactor. The High-Performance Reactor (HPLWR) European version and it a very promising design. In recent years, interest in study thorium-based fuel cycles has been renewed its possibilities for current LWRs have evaluated. use fuels will fundamental future sustainability energy, since...

An elderly woman had an expanding cervical mass that entrapped and compressed the adjacent cranial nerves, blood vessels, and muscles. The mass was dense on radiographs, extended from the skull base to low neck in the prevertebral and parapharyngeal tissues, and showed mixed intensity on MR. A previous direct carotid arteriogram with thorium dioxide as the contrast agent suggested the histologi...

1. The non-radioactive cesium ion can replace the potassium ion almost quantitatively in solutions required for the development of the egg of the sea urchin into swimming blastulae. 2. Thorium chloride and uranium acetate cannot replace the potassium chloride in the solutions required for the development of the egg. 3. Thorium chloride and uranium acetate do not antagonize the action of the pot...

Phosphoryl containing ligand tri-n-octylphosphine oxide (TOPO) in dichloromethane has been used as an extracting agent for tetravalent thorium and trivalent europium ions from their 1 M sodium nitrates. The equilibrium data reveal that both ions are extracted as the complexes at 1:3 metal/ligand ratio. The values of conditional extraction equilibrium constant (Kex) show the superior extract...