Indium thallium

Unlike boron, aluminum, gallium, and indium, thallium exists in both stable univalent (thaHous) and trivalent (thaUic) forms. There are numerous thaHous compounds, which are usually more stable than the corresponding thaUic compounds. The thaUium(I) ion resembles the alkaU metal ions and the silver ion in properties. In this respect, it forms a soluble, strongly basic hydroxide and a soluble carbonate, oxide, and cyanide like the alkaU metal ions. However, like the silver ion, it forms a very soluble fluoride, but the other haUdes are insoluble. Thallium (ITT) ion resembles aluminum, gallium, and indium ions in properties. 

The capability of zinc to reduce the ions of many metals to theh metallic state is the basis of important appHcations. However, metals are removed from zinc solutions by displacement with finely divided zinc before winning by electrolysis. Gold and silver are displaced from cyanide leach solutions with zinc and the following metals are similarly recovered from various solutions platinum group, cadmium, indium, thallium, and sometimes copper. 

T.R. Finlayson and H.G. Smith, Neutron scattering studies of premartensitic indium-thallium alloys. Met. Trans A 19A 193 (1988). 

Group IIIB (13). Boron, Aluminum, Gallium, Indium, Thallium... 

Reference has been made earlier to scattered rare metals, the five most important members of this particular group being gallium, indium, thallium, rhenium, and germanium. A common feature of these metals is that they do not form commercially significant mineral sources of their own, but are invariably produced from the processing of other mineral sources. The description given here pertains to rhenium, and serves as one example of these dispersed metals. 

Keywords Group 13 metals (aluminum, gallium, indium, thallium), Ambidentate ligands, Phosphorus-nitrogen bidentate ligands, Pyridyl phosphanes, Aminoiminophosphoranes, Lewis acid catalysis... 

Rudolph Christian Bottger (1806-1881) found in 1866 that the flue dust which condensed in the chimneys of the zdncworks near Goslar contained about one part of indium oxide in one thousand (79). He perfected methods of preparing the rare metals indium, thallium, and cesium (80). 

M.W. Burkart and T.A. Read. Diffusionless phase change in the indium-thallium system. Trans. AIME, 197 1516-1524, 1953. 

Property Boron Aluminum Gallium Indium Thallium... 

The poor metals among the BCNOs usually include aluminum, gallium, indium, thallium, tin, lead, and bismuth. The metalloids are boron, silicon, germanium, arsenic, antimony, tellurium, and polonium. The nonmetals are carbon, nitrogen, oxygen, phosphorus, sulfur and selenium. These groups are not official, and chemists sometimes disagree on whether a particular element like boron should be called a metal or a metalloid. 

Mesocestoides corti concentrate a variety of cations - chromium, copper, gallium, indium, thallium, zinc and zirconium - into calcareous corpuscles in vitro (36). 

Scandium, yttrium, lanthanum Mischmetal. The rare-earth metals. Gallium, indium, thallium. 

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