Tantalum (Ta)
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Tantalum

Tantalum is a chemical element with the symbol Ta and atomic number 73. A rare, hard, blue-gray, lustrous transition metal, tantalum is highly corrosion resistant and occurs naturally in the mineral tantalite, always together with the chemically similar niobium. Tantalum is part of the refractory metals group, which are widely used as minor component in alloys. The chemical inertness of tantalum makes it a valuable substance for laboratory equipment and a substitute for platinum, but its main use today is in tantalum capacitors.

Tantalum Metal Powder:

Tantalum Metal Powder Ta

CAS#: 7440-25-7, m.p. 2996 °C, b.p. 5425 °C, density 16.6 gm/cm3
Gray, heavy, ductile and very hard metal, high melting point, very high resistance to chemical corrosion.
Item No. Description Purity Lot Size
ME73-3N5(SR) Tantalum Metal Powder
Metallurgical Grade
-150 mesh or -325 mesh.
Ta > 99.95% (metals basis)
Nb < 0.010%, Fe < 0.005%, Ni < 0.005%, Si < 0.015%
O < 0.2%, H < 0.005%, N < 0.01%, C < 0.015%
10 kg
50 kg
100 kg
ME73-3N5(EB) Tantalum Metal Powder
Electron Beam Grade
-150 mesh or -325 mesh.
Ta > 99.95% (metals basis)
Nb < 50 ppm, Fe < 25 ppm, Ni < 50 ppm, Si < 10 ppm
O < 2000 ppm, N < 50 ppm, C < 50 ppm
10 kg
50 kg
100 kg
ME73-3N5(CP)-FTaXX Tantalum Metal Powder
Various Capacitor Grades
Ask for detailed specs.
Ta > 99.95% (metals basis)
O 1600~2800 ppm, N 70~300 ppm, C 70~100 ppm
Nb < 50 ppm, Fe+Cr+Ni < 150 ppm, Si < 10 ppm
Specific capacitance: 3,500 to 40,000 µfv/g
10 kg
50 kg
100 kg
Please Note:
We supply various fabricated tantalum and tantalum alloys products: tantalum plates, tantalum sheets, tantalum foils, tantalum targets, tantalum rods and tantalum wires for the electronic, semiconductor and chemical industries. Please contact us for more information and prices.

Tantalum Chloride:

Tantalum Chloride TaCl5

CAS#: 7721-01-9, UN3260
White to pale yellow crystals or crystalline powder, F.W. 358.21, m.p. 216 °C, Spec. Gravity 3.68gm/cm3
Item No. Description Purity Lot Size
CL73-3N Tantalum Chloride TaCl5 > 99.9% 50 kg
100 kg

Tantalum Oxide:

Tantalum (V) Oxide Ta2O5

CAS#: 1314-61-0, not hazardous, soluble in HF
White powder, F.W. 441.98, m.p. 1800 °C, Spec. Gravity 8.2 gm/cm3
Item No. Description Purity (Impurities in Oxides) Lot Size
OX73-3N Tantalum (V) Oxide Powder
Particle size (FSSS): 0.5~2 µm
Ta2O5 > 99.9% (metals basis)
Nb < 0.005%, Fe < 0.005%, Si < 0.002%
Ti < 0.002%, Ni < 0.002%, W < 0.003%
10 kg
50 kg
100 kg
OX73-4N Tantalum (V) Oxide Powder
Particle size (FSSS): 1~3 µm
Ta2O5 > 99.99% (metals basis)
Nb < 10 ppm, Fe < 10 ppm, Si < 10 ppm
Ti < 3 ppm, Ni < 3 ppm, W < 5 ppm
10 kg
50 kg
100 kg
OX73-5N Tantalum (V) Oxide Powder
Particle size (FSSS): 1~3 µm
Ta2O5 > 99.999% (metals basis)
Nb < 2 ppm, Fe < 3 ppm, Si < 3 ppm
Ti < 1 ppm, Ni < 1 ppm, W < 2 ppm
10 kg
50 kg
100 kg

Tantalum Metal:

Fabricated Tantalum and Tantalum Alloys Products

CAS#: 7440-25-7, m.p. 2996 °C, b.p. 5425 °C, density 16.6 gm/cm3
Gray, heavy, ductile and very hard metal, high melting point, very high resistance to chemical corrosion.
Item No. Description Material Standard
TA73-3N5(SH) Tantalum Sheet UNS R05200 99.95% Ta
UNS R05400 99.99% Ta
UNS R05252 Ta-2.5W
UNS R05255 Ta-10W
ASTM B708
TA73-3N5(FO) Tantalum Foil
Thickness >= 0.004”
UNS R05200 99.95% Ta
UNS R05400 99.99% Ta
UNS R05252 Ta-2.5W
UNS R05255 Ta-10W
ASTM B708
TA73-3N5(TT) Tantalum Tube
Diameter: 0.008"-6"
Wall thick >= 0.0006"
UNS R05200 99.95% Ta
UNS R05400 99.99% Ta
UNS R05252 Ta-2.5W
UNS R05255 Ta-10W
ASTM B521
TA73-3N5(TR) Tantalum Rod UNS R05200 99.95% Ta
UNS R05400 99.99% Ta
UNS R05252 Ta-2.5W
UNS R05255 Ta-10W
ASTM B365
TA73-3N5(TW) Tantalum Wire UNS R05200 99.95% Ta
UNS R05400 99.99% Ta
UNS R05252 Ta-2.5W
UNS R05255 Ta-10W
ASTM B365
Product
Tantalum
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