The closing of the nuclear fuel cycle is an unsolved problem of great importance. Separating radionuclides produced in a nuclear reactor is useful both for the storage of nuclear waste and for recycling of nuclear fuel. These separations can be performed by designing appropriate chelation chemistries and liquid-liquid extraction schemes, such as in the TALSPEAK process (Trivalent Actinide-Lanth...

the six elements commonly known as metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium. metalloid containing compounds have been used as antiprotozoal drugs. boron-based drugs, the benzoxaboroles have been exploited as potential treatments for neglected tropical diseases. arsenic has been used as a medicinal agent and arsphenamine was the main drug used to treat syphilis....

Phases having compositional fields narrower than about 1 at.% and appearing as lines in binary phase diagrams often are assumed to have properties independent of composition. That such an assumption can be seriously in error is illustrated by recent measurements on pairs of samples prepared to have compositions at opposing phase boundaries. Two microscopic properties, lattice locations of highl...