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Bismuth is a chemical element; it has symbol Bi and atomic number 83. It is a post-transition metal and one of the pnictogens, with chemical properties resembling its lighter group 15 siblings arsenic and antimony. Elemental bismuth occurs naturally, and its sulfide and oxide forms are important commercial ores.
Bismuth chloride (or butter of bismuth) is an inorganic compound with the chemical formula BiCl 3. It is a covalent compound and is the common source of the Bi 3+ ion. In the gas phase and in the crystal, the species adopts a pyramidal structure, in accord with VSEPR theory .
New York: The International Nickel Company, Inc., 1941: 16. — "Values ranging from 21.3 to 21.5 gm/cm 3 at 20 °C have been reported for the density of annealed platinum; the best value being about 21.45 gm/cm 3 at 20 °C." 21.46 g/cm 3 — Rose, T. Kirke. The Precious Metals, Comprising Gold, Silver and Platinum.
Bismuth atoms are shown as grey, oxygen red, chlorine green. Bismuth oxychloride (BiOCl) and bismuth oxynitrate (BiONO 3) stoichiometrically appear simple anionic salts of the bismuthyl (III) cation (BiO +), which commonly occurs in aqueous bismuth compounds. However, in the case of BiOCl, the salt crystal forms alternating plates of Bi, O, and ...
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Bismuth oxychloride is an inorganic compound of bismuth with the formula Bi O Cl. It is a lustrous white solid used since antiquity, notably in ancient Egypt . Light wave interference from its plate-like structure gives a pearly iridescent light reflectivity similar to nacre .
Bismuth telluride (Bi2Te3) is a gray powder that is a compound of bismuth and tellurium also known as bismuth (III) telluride. It is a semiconductor, which, when alloyed with antimony or selenium, is an efficient thermoelectric material for refrigeration or portable power generation. Bi2Te3 is a topological insulator, and thus exhibits ...
Bismuth significantly improves the wettability of the solder. When the composition is more than 47% Bi, the alloy will expand upon cooling. Cadmium quickly oxidizes, resulting in tarnish and slow soldering. It improves the mechanical properties of the alloys. Indium lowers the melting point at a rate of 1.45 °C per 1 wt% of added In. It easily ...