Tantalum Pellets

High Purity Ta Pellets
CAS 7440-25-7


Product Product Code Order or Specifications
(2N) 99% Tantalum Pellets TA-M-02-PE Contact American Elements
(3N) 99.9% Tantalum Pellets TA-M-03-PE Contact American Elements
(4N) 99.99% Tantalum Pellets TA-M-04-PE Contact American Elements
(5N) 99.999% Tantalum Pellets TA-M-05-PE Contact American Elements

CHEMICAL
IDENTIFIER		 Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.		 SMILES
Identifier 		InChI
Identifier		 InChI
Key
Ta 7440-25-7 24855933 N/A MFCD00011252 231-135-5 N/A [Ta] InChI=1S/Ta GUVRBAGPIYLISA-UHFFFAOYSA-N

PROPERTIES Mol. Wt. Appearance Density Tensile Strength Melting Point Boiling Point Thermal Conductivity Electrical Resistivity Eletronegativity Specific Heat Heat of Vaporization Heat of Fusion MSDS
180.94 Silvery-gray 16.654 gm/cc up to 130,000 psi 2996 °C 5425 °C 0.575 W/cm/K @ 298.2 K 12.45 microhm-cm @ 0°C 1.5 Paulings 0.0334 Cal/g/K @ 25 °C 180 K-Cal/gm atom at 5425°C 7.5 Cal/gm mole Safety Data Sheet

American Elements specializes in producing high purity uniform shaped Tantalum Pellets with the highest possible density High Purity Pelletsand smallest possible average grain sizes for use in semiconductor, Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processes including Thermal and Electron Beam (E-Beam) Evaporation, Low Temperature Organic Evaporation, Atomic Layer Deposition (ALD), Metallic-Organic and Chemical Vapor Deposition (MOCVD). Our standard Pellet sizes range from 1/8" x 1/8" to 1/4" x 1/4" and 3 mm diameter. We can also provide Pellets outside this range for ultra high purity thin film applications, such as fuel cells and solar energy layers. Materials are produced using crystallization, solid state and other ultra high purification processes such as sublimation. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into rod, bar or plate form, as well as other machined shapes and through other processes nanoparticles. See research below. We also produce Tantalum as rod, ingot, powder, pieces, disc, granules, wire, and in compound forms, such as oxide. Other shapes are available by request.

Tantalum(Ta) atomic and molecular weight, atomic number and elemental symbolTantalum is a Block D, Group 5, Period 6 element. The number of electrons in each of Tantalum's shells is 2, 8, 18, 32, 11, 2 and its electronic configuration is [Xe] 4f14 5d3 6s2. In its elemental form tantalum's CAS number is 7440-25-7. The tantalum atom has a radius of 143.pm and its Van der Waals radius is 200.pm. Tantalum is not toxic. Tantalum has a number of interesting properties that make it particularly useful in electronic applications. Tantalum is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. It has the third highest melting point, surpassed only by rhenium and tungsten, yet it is highly conductive to heat and electricity. This has made it the material of choice for electronic capacitors for most Tantalum Bohr Modeltelecommunications and hand held electronics equipment, such as cell phones, laptop computers and pagers. Elemental TantalumTantalum compounds, such as the oxide and chloride, are the basis for di-electric coatings. Tantalum is added to glass for its high refractive index. It has various applications in nuclear energy. A team of MIT researchers recently developed a new kind of high-temperature photonic crystal using Tantalum. The new material could eventually power a wide variety of electronic devices. Due to the close relation of tantalum to niobium in the periodic table, Tantalum's name originates from the Greek word Tantalos meaning Father of Niobe in Greek mythology. Tantalum is found in the minerals tantalite, microlite, wodginite, euxenite, polycrase. See Tantalum research below.


HEALTH, SAFETY & TRANSPORTATION INFORMATION
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CUSTOMERS FOR TANTALUM PELLETS HAVE ALSO LOOKED AT
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PACKAGING SPECIFICATIONS FOR BULK & RESEARCH QUANTITIES
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.


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Recent Research & Development for Tantalum

  • High-temperature stability and selective thermal emission of polycrystalline tantalum photonic crystals. Rinnerbauer V, Yeng YX, Chan WR, Senkevich JJ, Joannopoulos JD, Soljacic M, Celanovic I. Opt Express. 2013 May 6;21(9):11482-91. doi: 10.1364/OE.21.011482.
  • Porous Tantalum Tibial Component Prevents Periprosthetic Loss of Bone Mineral Density After Total Knee Arthroplasty for Five Years-A Matched Cohort Study. Minoda Y, Kobayashi A, Ikebuchi M, Iwaki H, Inori F, Nakamura H. J Arthroplasty. 2013 Apr 30. doi:pii: S0883-5403(13)00285-4. 10.1016/j.arth.2013.03.031.
  • Tantalum coating on porous Ti6Al4V scaffold using chemical vapor deposition and preliminary biological evaluation. Li X, Wang L, Yu X, Feng Y, Wang C, Yang K, Su D. Mater Sci Eng C Mater Biol Appl. 2013 Jul 1;33(5):2987-94. doi: 10.1016/j.msec.2013.03.027.
  • Sol-gel synthesis of tantalum oxide and phosphonic acid-modified carbon nanotubes composite coatings on titanium surfaces. Maho A, Detriche S, Delhalle J, Mekhalif Z. Mater Sci Eng C Mater Biol Appl. 2013 Jul 1;33(5):2686-97. doi: 10.1016/j.msec.2013.02.025.
  • Tantalum oxide and barium sulfate as radiopacifiers in injectable calcium phosphate-poly(lactic-co-glycolic acid) cements for monitoring in vivo degradation. Hoekstra JW, van den Beucken JJ, Leeuwenburgh SC, Bronkhorst EM, Meijer GJ, Jansen JA. J Biomed Mater Res A. 2013 Apr 24. doi: 10.1002/jbm.a.34677.
  • Tantalum Catalyzed Hydroaminoalkylation for the Synthesis of a- and ß-Substituted N-Heterocycles. Payne PR, Garcia P, Eisenberger P, Yim JC, Schafer LL. Org Lett. 2013 May 3;15(9):2182-5. doi: 10.1021/ol400729v.
  • Early Failure of Cementless Porous Tantalum Monoblock Tibial Components. Meneghini RM, de Beaubien BC. J Arthroplasty. 2013 Apr 3. doi:pii: S0883-5403(13)00228-3. 10.1016/j.arth.2013.03.005.
  • Fabrication of Tantalum and Nitrogen Codoped ZnO (Ta, N-ZnO) Thin Films Using the Electrospay: Twin Applications as an Excellent Transparent Electrode and a Field Emitter. Mahmood K, Park SB, Sung HJ. ACS Appl Mater Interfaces. 2013 May 8;5(9):3722-30. doi: 10.1021/am4003342.
  • Submicron optical waveguides and microring resonators fabricated by selective oxidation of tantalum. Rabiei P, Ma J, Khan S, Chiles J, Fathpour S. Opt Express. 2013 Mar 25;21(6):6967-72. doi: 10.1364/OE.21.006967.
  • Free radicals generated by tantalum implants antagonize the cytotoxic effect of doxorubicin. Chen M, Hein S, Le DQ, Feng W, Foss M, Kjems J, Besenbacher F, Zou X, Bünger C. Int J Pharm. 2013 May 1;448(1):214-20. doi: 10.1016/j.ijpharm.2013.03.041.
  • Development and Applications of Porous Tantalum Trabecular Metal-Enhanced Titanium Dental Implants. Bencharit S, Byrd WC, Altarawneh S, Hosseini B, Leong A, Reside G, Morelli T, Offenbacher S. Clin Implant Dent Relat Res. 2013 Mar 25. doi: 10.1111/cid.12059.
  • EBSD coupled to SEM in situ annealing for assessing recrystallization and grain growth mechanisms in pure tantalum. Kerisit C, Logé RE, Jacomet S, Llorca V, Bozzolo N. J Microsc. 2013 Jun;250(3):189-99. doi: 10.1111/jmi.12034.
  • Bone ingrowth in well-fixed retrieved porous tantalum implants. Hanzlik JA, Day JS; Acknowledged Contributors: Ingrowth Retrieval Study Group. J Arthroplasty. 2013 Jun;28(6):922-7. doi: 10.1016/j.arth.2013.01.035.
  • Compton profile study and electronic properties of tantalum diboride. Raykar V, Bhamu KC, Ahuja BL. Appl Radiat Isot. 2013 Jul;77:38-43. doi: 10.1016/j.apradiso.2013.02.020.
  • Methods for producing scaffold-free engineered cartilage sheets from auricular and articular chondrocyte cell sources and attachment to porous tantalum. Whitney GA, Mera H, Weidenbecher M, Awadallah A, Mansour JM, Dennis JE. Biores Open Access. 2012 Aug;1(4):157-65. doi: 10.1089/biores.2012.0231.
  • Oxyacetylene torch testing and microstructural characterization of tantalum carbide. Paul A, Binner JG, Vaidhyanathan B, Heaton AC, Brown PM. J Microsc. 2013 May;250(2):122-9. doi: 10.1111/jmi.12028.
  • Synthesis, X-ray characterization, and reactivity of a-aminoacidato ethoxide complexes of niobium(V) and tantalum(V). Hayatifar M, Marchetti F, Pampaloni G, Zacchini S. Inorg Chem. 2013 Apr 1;52(7):4017-25. doi: 10.1021/ic4000654.
  • Quantification and reduction of reflux during embolotherapy using an antireflux catheter and tantalum microspheres: ex vivo analysis. Arepally A, Chomas J, Kraitchman D, Hong K. J Vasc Interv Radiol. 2013 Apr;24(4):575-80. doi: 10.1016/j.jvir.2012.12.018.
  • Tantalum cones in revision total knee arthroplasty. A promising short-term result with 29 cones in 21 patients. Villanueva-Martínez M, De la Torre-Escudero B, Rojo-Manaute JM, Ríos-Luna A, Chana-Rodriguez F. J Arthroplasty. 2013 Jun;28(6):988-93. doi: 10.1016/j.arth.2012.09.003.
  • Porous tantalum rod implant is an effective and safe choice for early-stage femoral head necrosis: a meta-analysis of clinical trials. Zhang Y, Li L, Shi ZJ, Wang J, Li ZH. Eur J Orthop Surg Traumatol. 2013 Feb;23(2):211-7. doi: 10.1007/s00590-012-0962-7.