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TANTALUM
(Ta)
MATERIAL
OVERVIEW
Characteristics:
(a) Black powder (b) Steel-blue-colored metal when
unpolished, nearly platinum-white color when polished.
Soluble in fused alkalies, insoluble in acids except
hydrofluoric and fuming sulfuric acids. Tensile
strength of drawn wire may be as high as 130,000 psi.
Refractive index 2.05.
Hazards:
Dust or powder may be flammable. Moderately toxic by
inhalation. Tolerance: 5 mg/m3
of
air.
GENERAL
PROPERTIES
|
Symbol:
|
Ta
|
|
Atomic
Number:
|
73
|
|
Atomic
Weight:
|
180.9479
|
|
Density:
|
16.654
gm/cc
|
|
Melting
Point:
|
2996
oC
|
|
Boiling
Point:
|
5425
oC
|
|
Thermal
Conductivity:
|
0.575
W/cm/oK
@ 298.2 oK
|
|
Electrical
Resistivity:
|
12.45
microhm-cm @ 0 oC
|
|
Electronegativity:
|
1.5
Paulings
|
|
Specific
Heat:
|
0.0334
Cal/g/oK
@ 25 oC
|
|
Heat
of Vaporization:
|
180
K-Cal/gm atom at 5425 oC
|
|
Heat
of Fusion:
|
7.5
Cal/gm mole
|
TYPICAL
ANALYSES
Impurities
in ppm
|
Material
/ Purity:
|
3N
|
3N8
|
|
Cr
|
10
|
10
|
|
Nb
|
100
|
10
|
|
Si
|
100
|
10
|
|
W
|
125
|
40
|
|
Zr
|
-
|
10
|
|
Mo
|
-
|
10
|
|
Mg
|
-
|
10
|
|
Sn
|
-
|
10
|
|
Fe
|
100
|
15
|
|
Ni
|
100
|
15
|
|
Ti
|
<50
|
10
|
|
V
|
-
|
10
|
|
Cu
|
-
|
10
|
|
Mn
|
-
|
10
|
|
Al
|
-
|
10
|
|
Co
|
-
|
10
|
TANTALUM
WIRE
|
Material
|
Purity
|
|
Tantalum
Wire .001” to .090”
|
3N8
|
Wire
is spooled to order and sold by the foot or meter.
TANTALUM
ROD
|
Material
|
Purity
|
|
Tantalum
Rod .0625”
|
3N8
|
|
Tantalum
Rod .125”
|
3N8
|
|
Tantalum
Rod .250”
|
3N8
|
|
Tantalum
Rod .500”
|
3N8
|
|
Tantalum
Rod .625”
|
3N8
|
|
Tantalum
Rod .750”
|
3N8
|
|
Tantalum
Rod 1”
|
3N8
|
Rod
is cut to order and sold by the inch or foot.
TANTALUM
FOIL
|
Material
|
Purity
|
|
Tantalum
Foil .001”
|
3N8
|
|
Tantalum
Foil .002”
|
3N8
|
|
Tantalum
Foil .003”
|
3N8
|
|
Tantalum
Foil .004”
|
3N8
|
|
Tantalum
Foil .005”
|
3N8
|
|
Tantalum
Foil .006”
|
3N8
|
|
Tantalum
Foil .007”
|
3N8
|
|
Tantalum
Foil .008”
|
3N8
|
|
Tantalum
Foil .009”
|
3N8
|
Foil
is cut to order and sold by the square inch or square
foot.
TANTALUM
SHEET
|
Material
|
Purity
|
|
Tantalum
Sheet .010” to 1”
|
3N8
|
Sheet
is cut to order and sold by the square inch or square
foot.
TANTALUM
SPUTTERING TARGETS
|
Material
|
Purity
|
|
Tantalum
Sputtering Target 2"D X .125"T
|
3N8
|
|
Tantalum
Sputtering Target 2"D X .250"T
|
3N8
|
|
Tantalum
Sputtering Target 3"D X .125"T
|
3N8
|
|
Tantalum
Sputtering Target 3"D X .250"T
|
3N8
|
|
Tantalum
Sputtering Target 4"D X .125"T
|
3N8
|
|
Tantalum
Sputtering Target 4"D X .250"T
|
3N8
|
Additional
sizes available upon request.
TANTALUM
POWDER, SHOT, PELLETS, & INGOT
|
Material
|
Purity
|
|
Tantalum
Shot .125"
|
3N8
|
|
Tantalum
Pellets .125"D
X .125"L 
|
3N8
|
|
Tantalum
Pellets .250"D X .250"L
|
3N8
|
|
Tantalum
Powder-100 Mesh
|
3N8
|
|
Tantalum
Powder-325 Mesh
|
3N8
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Powder,
shot, pellets, and ingots are packaged to order and
sold by the gram or kilogram.
TANTALUM
COMPOUNDS
|
Material
|
Purity
|
|
Tantalum
Boride TaB -325
Mesh
|
2N5
|
|
Tantalum
Boride TaB2
-325 Mesh
|
2N5
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Tantalum
Bromide TaBr5
-8 Mesh
|
3N
|
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Tantalum
Carbide TaC
-200
+325 Mesh
|
2N
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|
Tantalum
Carbide TaC
-325 Mesh
|
2N5
|
|
Tantalum
Carbide Ta2C
-325 Mesh
|
2N5
|
|
Tantalum
Fluoride TaF5
-4 Mesh
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3N
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Tantalum
Iodide TaI5
-8 Mesh
|
3N
|
|
Tantalum
Nitride TaN
-325 Mesh
|
2N5
|
|
Tantalum
Oxide Ta2O5
Tablets
|
3N
|
|
Tantalum
Oxide Ta2O5
1/2" to 1/8" Pieces
|
3N
|
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Tantalum
Oxide Ta2O5
-325 Mesh
|
3N5
|
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Tantalum
Phosphide TaP
-100 Mesh
|
2N5
|
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Tantalum
Silicide TaSi2
-325 Mesh
|
2N5
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Tantalum
Silicide Ta5Si3
-325 Mesh
|
2N5
|
|
Tantalum
Telluride TaTe2
-325 Mesh
|
2N8
|
Compounds
are packaged to order and sold by the gram or
kilogram.
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