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Bismuth poisoning can occur and has according to some reports been common in relatively recent times. [108] [110] As with lead, bismuth poisoning can result in the formation of a black deposit on the gingiva, known as a bismuth line. [111] [112] [113] Poisoning may be treated with dimercaprol; however, evidence for benefit is unclear. [114] [115]
Unlike the lighter pnictogens nitrogen, phosphorus, and arsenic, but similar to antimony, bismuth does not form a stable hydride. Bismuth hydride, bismuthine (BiH 3), is an endothermic compound that spontaneously decomposes at room temperature. It is stable only below −60 °C. [5] Bismuthides are intermetallic compounds between bismuth and ...
The resistivity can be expressed using the SI unit ohm metre (Ω⋅m) — i.e. ohms multiplied by square metres (for the cross-sectional area) then divided by metres (for the length). Both resistance and resistivity describe how difficult it is to make electrical current flow through a material, but unlike resistance, resistivity is an ...
The chemical elements can be broadly divided into metals, metalloids, and nonmetals according to their shared physical and chemical properties.All elemental metals have a shiny appearance (at least when freshly polished); are good conductors of heat and electricity; form alloys with other metallic elements; and have at least one basic oxide.
Bismuth has one of the lowest thermal conductivities of pure elemental metals. It is fragile, highly diamagnetic and it has a magnetic susceptibility of −1.68×10 −5 mks. Bismuth is used as catalyst in the production of plastics and cosmetics, as an additive in steel alloys, and in electronics.
Bismuth(III) oxide is a compound of bismuth, and a common starting point for bismuth chemistry.It is found naturally as the mineral bismite (monoclinic) and sphaerobismoite (tetragonal, much more rare), but it is usually obtained as a by-product of the smelting of copper and lead ores.
Organobismuth radical is a chemical species that has unpaired electrons on bismuth centers within organic frameworks. [1] These radicals are part of the broader family of pnictogen-centered radicals, which include nitrogen, phosphorus, arsenic, antimony, and bismuth. [2]
Semimetals, in contrast to metalloids, can also be chemical compounds, such as mercury telluride (HgTe), [3] and tin, bismuth, and graphite are typically not considered metalloids. [4] Transient semimetal states have been reported at extreme conditions. [5] It has been recently shown that some conductive polymers can behave as semimetals. [6]