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BISMUTH
COMPOUNDS (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
|
|
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
|
<1
|
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
|
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
COMPOUNDS
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Material
|
Purity
|
|
Bismuth
Bromide BiBr3,
-60 Mesh
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2N,
5N
|
|
Bismuth
Chloride BiCl3,
-60 Mesh
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3N,
5N
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Bismuth
Fluoride BiF3,
-60 Mesh
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3N,
5N
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Bismuth
Oxide Bi2O3,
-200 Mesh
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5N
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Bismuth
Oxide Bi2O3,
1/2"-1/8" Pieces
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3N
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Bismuth
Oxide Bi2O3,
-325 Mesh
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3N
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Bismuth
Selenide Bi2Se3,
-325 Mesh
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2N,
5N
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|
Bismuth
Sulfide Bi2S3,
-200 Mesh
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3N,
5N
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|
Bismuth
Telluride Bi2Te3,
1/4" Pieces by Down
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2N,
5N
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|
Bismuth
Telluride Bi2Te3,
-325 Mesh
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2N,
5N
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Bismuth
Titanate Bi4Ti3O12,
-325 Mesh
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3N
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Bismuth
Titanate Bi2Ti4O11,
-325 Mesh
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3N
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Bismuth
Tungstate Bi2(WO4)3,
-200 Mesh
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3N
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Compounds
are packaged to order and sold by the gram or
kilogram.
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