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BISMUTH
PELLETS (Bi)
MATERIAL
OVERVIEW
Characteristics:
Crystalline, brittle metal, with reddish tinge.
Soluble in nitric and hydrochloric acids. Highly
diamagnetic (mass susceptibility -1.35 X 106).
Expands 3.3% on solidification.
Electrical resistivity higher in solid than in
liquid state. Extrudable at 437 oF,
not fabricable at room temperature. Brinell hardness
7. Thermal conductivity is lowest of all metals except
mercury. On heating it burns to form the oxide.
Derivation:
Debismuthizing of lead bullion by (a) fractional
crystallization, (b) electrolytic (Betts) refining, or
(c) addition of calcium or magnesium (Betterton-Kroll
process) which removes bismuth.
Hazard:
Flammable in powder form.
GENERAL
PROPERTIES
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Symbol:
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Bi
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Atomic
Number:
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83
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Atomic
Weight:
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208.9804
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Density:
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9.747
gm/cc
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Melting
Point:
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271.3
oC
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Boiling
Point:
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1560
oC
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Thermal
Conductivity:
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0.0792
W/cm/oK
@ 298.2 oK
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Electrical
Resistivity:
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106.8
microhm-cm @ 0 oC
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Electronegativity:
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1.9
Paulings
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Specific
Heat:
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0.0296
Cal/g/oK
@ 25 oC
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Heat
of Vaporization:
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42.7
K-Cal/gm atom at 1560 oC
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Heat
of Fusion:
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2.505
Cal/gm mole
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TYPICAL
ANALYSES
Impurities
in ppm
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Material
/ Purity:
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4N5
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5N
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6N
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Cu
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<1
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0.2
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<0.1
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Pb
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<10
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3.0
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0.3
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Ag
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<10
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0.3
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-
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Sn
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2
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2
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-
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Mg
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<5
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<2
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<0.1
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Si
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<5
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<2
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<0.1
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BISMUTH
PELLETS
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Material
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Purity
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Bismuth
Shot 3-6mm
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4N,
5N, 6N
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Bismuth
Ingot
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4N,
5N, 6N
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Bismuth
Powder-100 Mesh
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4N,
5N, 6N
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Bismuth
Powder-325 Mesh
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4N,
5N, 6N
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Powder,
shot, and ingots are packaged to order and sold by the
gram or kilogram.
Ingots can be cast to customer specified sizes.
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