Indium hydroxide

Porphyrin, octaethyl-, indium hydroxide complex cyclic voltammetry, 4, 399 <73JA5140)... 

Hiraide et al. [737] developed a multielement preconcentration technique for chromium (III), manganese (II), cobalt, nickel, copper (II), cadmium, and lead in artificial seawater using coprecipitation and flotation with indium hydroxide followed by ICP-AES. The metals are simultaneously coprecipitated with indium hydroxide adjusted to pH 9.5, with sodium hydroxide, ethano-lic solutions of sodium oleate and dodecyl sulfate added, and then floated to... 

Indium hydroxide, 14 197 Indium mines, 14 192-193 Indium oxide, 5 600 14 195, 196 Indium phosphide, 14 197 Indium plating, for microelectronics, 9 813 Indium-point realization, 24 444 Indium tin oxide (ITO), 7 530 14 196-197 24 805... 

The intravenous dose of indium hydroxide In 113m injection is the equivalent of 0.37 gigabecquerel. Express this dose in terms of mCi. 

Indium may be recovered from zinc ores by several patented processes. Usually it is recovered from residues obtained from zinc extraction. The residues, slags, fume, or dusts from zinc smelting or lead-zinc smelting are treated with a mineral acid. Other steps involved in recovery often vary, but mostly use solvent extraction and precipitation steps. In some processes, treatment with caustic soda yields indium hydroxide. The hydroxide is calcined to obtain oxide, which then is reduced with hydrogen at elevated temperatures to obtain the metal. Distillation or electrolysis are the final steps to... 

The CDJP process can also be readily scaled up. For example, it was demonstrated that large batches (e.g., 500 g) of uniform indium hydroxide could be obtained in a bench-size apparatus (26). 

Hydrolysis of In(N03)3 solutions, containing different amounts of Na2S04, yields indium hydroxide particles of various shapes (125,126). Some of these particles are displayed in Figure 1.1.18, all of which show distinct x-ray diffraction patterns, although the spectra could not be related to any reported indium compound (125,126). On calcination at 1000°C, these solids are converted to ln203. 

Renz 4 describes an additive compound of indium trichloride and pyridine, tripyridino-indium trichloride, [In(C5H5N)3]Cl3, which is prepared by adding pyridine to a solution of indium trichloride in alcohol. After standing for a short time, small needle-shaped crystals separate of melting-point 253° C. The compound is not hygroscopic like indium chloride, is somewhat sparingly soluble in alcohol, and is insoluble in ether. It decomposes on warming with water with formation of indium hydroxide, In(OH)3. Aluminium trichloride and iron trichloride form similar addition products. 

Multielement preconcentration of trace heavy metals in water by preconcentration and flotation with indium hydroxide for ICP-AES, Anal Chem 52 804-807. 

Many synthetic materials, especially monodispersed particles (for details cf. Section III.2) are prepared in the presence of strongly adsorbing ions. It is often impossible to entirely remove these ions from the final material, even after multiple washing cycles, dialysis, etc. For example, a substantial difference in surface charging behavior between indium hydroxide and oxide prepared in the presence of sulfate on the one hand and nitrate on the other has been reported [31]. 

Hamada, S., Kudo, Y, and Kobayashi, T., Precipitation of uniform indium hydroxide particles from indium 2-aminobutyrato complex solutions. Colloids Surf. A, 79, 227, 1993. 

The indium(m) selenate In2(SeO4)3,9H20 has been prepared by dissolving freshly precipitated indium hydroxide in dilute selenic acid. Thermal... 

As the group is descended, atomic radii increase and ionization energies are all lower than for boron. There is an increase in polar interactions and the formation of distinct M ions. This increase in metaUic character is clearly Ulustrated by the increasing basic character of the hydroxides boron hydroxide is acidic, aluminium and gallium hydroxides are amphoteric, indium hydroxide is basic, and thaUium forms only the oxide. As the elements of group 13 have a vacant p-orbital they display many electron-acceptor properties. For example, many boron compounds form adducts with donors such as... 

Trace heavy metals in 11 of sample can be coprecipitated with indium hydroxide at pH 9-9.5 by using... 

To a 1001 sample, 500 ml of 12 mol 1 hydrochloric acid, 10 ml of cobalt carrier solution (Img Co mH ), and 400 ml of l-nitroso-2-naphthol solution (5mgmH in ethanol) are added. With peristaltic pumps, the sample solution, 1 mol 1 aqueous ammonia, and anionic surfactant solution (O.SmgmH in 70% ethanol, sodium oleate-SDS = 1 3) are fed into a 11 reaction bottle at flow rates of 500, 35, and 10 ml min respectively. In the reaction bottle, the cobalt chelate is captured by a flocculent precipitate of indium hydroxide at pH 8.5-9. The contents of the bottle are continuously transferred to a flotation cell and flotation continues until the completion of sample feeding. The precipitate is sucked into a sampling bottle and then dissolved in 100 ml of 6molH hydrochloric acid. The cobalt chelate is separated from indium ions by extraction with chloroform and destroyed by dry oxidation. After dissolving the residue in 5 ml of 8 mol 1 hydrochloric... 

Seawater Cobalt-eo Indium hydroxide 8.5-9 Sodium oleate + SDS LSC... 

While the solubihty of tin hydroxide is higher than for indium hydroxide ... 

Ltikin NM, Vatbetg TD, Brown JM (1997) The detection of lines in the microwave spectrum of indium hydroxide, InOH, and its isotopomers. J Mol Spectr 183 34-41... 

The two-stage approach is used at the Hoboken lead smelter in Belgium. In that case the black antimony residue is acid leached to separate indium and tellurium leaving a lead-antimony residue. Tellurium is precipitated from solution using sulfur dioxide followed by indium precipitation as a hydroxide. The indium hydroxide is re-dissolved in acid and cemented from the resulting solution as indium metal by the addition of zinc dust (DeKeyser and Jespers, 1981). 

They also isolated the new metal by simple chemical methods. The zinc blende sample was dissolved in add and several metals, Pb, Cu, As and Sn, were removed by predpitation with hydr< en sulfide. The filtrate was oxidized and neutralized with ammonia in great excess. Zinc stayed dissolved whQe a predpitate of iron hydroxide, also containing indium, was obtained The hydroxide predpitate was dissolved in add, and iron (and some indium) was predpitated again by carefiil addition of sodium carbonate. From the filtrate indium hydroxide was predpitated by sodium carbonate in excess. They prepared indium by reduction of the oxide with charcoal in front of the narrow end of a blowpipe. The new metal was, according to the discoverers, a soft dudUe metal, with which one could mark a paper, and it was of lighter color than lead, similar to tin . 

Ono S., Yamada N., Hirano S. Pottasium lithium niobate films derived from aqueous precursor solution. J. Am. Ceram. Soc. 2001 84 1415-1420 Panda A.B., Pathak A., NandagoswamiM., PramanikP. Preparation and characterization ofnanocrys-talline Sri j Bi2+jTa209 powders. Mater. Sci. Eng. 2003 B97 275-282 Perez-Maqueda L.A., Wang L., Matijevic E. Nanosize indium hydroxide by peptization of colloidal precipitates. Langumuir 1998 14 4397-4401... 

Indium is also known to form both monomeric and polymeric hydrolysis species which are formed according to reaction (2.5) (M = In ). To date, data are available for the formation ofthe monomeric species InOH ", In(OH)2 and In(OH)4. There does not appear to be information on the formation of the neutral hydrolysis species In(OH)3(aq). Although a number of polymeric hydrolysis species have been proposed, it appears that only the dimer In2(OH)2 actually forms before precipitation of indium hydroxide occurs. 

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