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Radioactive metals

Barium titanate thin films can be deposited on various substances by treating with an aqueous solution containing barium salts and an alkanolamine-modifted titanate such as TYZOR TE (151). In a similar fashion, reaction of a tetraalkyl titanate with an alkah metal hydroxide, such as potassium hydroxide, gives oxyalkoxide derivatives (KTi O(OR) ), which can be further processed to give alkali metal titanate powders, films, and fibers (152—155). The fibers can be used as adsorbents for radioactive metals such as cesium, strontium, and uranium (156). [Pg.151]

Radioactive metal ions that have short half-lives are being intensely studied as pharmaceuticals. The strategy is to attach a well-designed ligand to the metal ion so that the complex very selectively aggregates in one particular type of body tissue. What properties of the ligand are important to... [Pg.846]

Ware AR, Odell KJ, Martin JP. 1998. Analysis of radioactive metal ions in environmental and liquid effluent samples. J Radioanal Nucl Chem 228(l-2) 5-13. [Pg.266]

Many of the reagents developed initially for the recovery of base or radioactive metals have also been investigated as potential PGM extractants, e.g., phosphine oxides,310-313 dialkylsulfoxides,314 dialkyl-and diphemd-thioureas,296,315-317 thiopicolinamides, thiobenzanilide,319 phosphate diesters,320 tetra-... [Pg.790]

Thorium is a radioactive metal that occurs naturally in several minerals and rocks usually associated with uranium. However, it is approximately three times more abundant in nature than uranium. On average, soil contains 6 to 10 ppm of thorium. Thorium is most commonly found in the rare-earth thorium-phosphate mineral, monazite, which contains 8% 10% thorium. Current production of thorium is, therefore, linked to the production of monazite, which varies between 5500 and 6500 tonnes per year, with approximately 300 to 600 tonnes of thorium recovered (NEA/IAEA, 2006a). [Pg.130]

Hwang KJ, Merriam JE, Beaumier PL, Luk KF. Encapsulation, with high efficiency, of radioactive metal ions in liposomes. Biochim Biophys Acta 1982 716 101. [Pg.183]

Polonium - the atomic number is 84 and the chemical symbol is Po. This radioactive metal was also known as radium-F. The name derives from Poland , the native country of Marie Sklodowska Curie. It was discovered by Pierre and Marie Curie in 1898, from its radioactivity. It was independently found by the German chemist Willy Marckwald in 1902 and called radiotellurium. The longest half-life associated with this unstable element is 102 year ° Po. [Pg.16]

All five elements in the oxygen group have six electrons in their outer orbits. They are all oxidizers (they accept electrons), but they are not all alike. They range from a nonmetal gas (oxygen) to a nonmetal solid (sulfur) to a nonmetallic semiconductor (selenium) to a semimetal (tellurium) and finally to a radioactive metal (polonium). [Pg.223]

Promethium is a silvery-white, radioactive metal that is recovered as a by-product of uranium fission. Promethium-147 is the only isotope generally available for smdy. The spectral lines of promethium can be observed in the light from a distant star in the constellation Andromeda. Even so, it is not found naturally on Earth, and scientists consider it to be an artificial element. Its melting point is 1,042°C, its boiling point is estimated at 3,000°C, and its density is 7.3 g/cm. ... [Pg.285]


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See also in sourсe #XX -- [ Pg.318 ]




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Alkali metals radioactive isotopes

Alkaline earth metals radioactive isotopes

Extraction, metal ions from radioactive waste

Flotation, bubble and foam separations of radioactive metal

Metals/metalloids radioactive isotopes

Naturally occurring radioactive metals

Poisoning radioactive heavy metals

Radioactive heavy metals

Radioactive isotopes group 1 metals

Radioactive metal removal

Radioactive metals, environmental

Radioactive metals, sources

Radioactive rare metals

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