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Tantalum Coins
High Purity Ta Coins
7440-25-7
Product
Product Code
Order or Specifications
99% Tantalum Coins
TA-M-02-BCN
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99.9% Tantalum Coins
TA-M-03-BCN
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99.99% Tantalum Coins
TA-M-04-BCN
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99.999% Tantalum Coins
TA-M-05-BCN
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American Elements' AE Bullion™ group mints certified high purity Tantulum Coins from laboratory certified engineered materials with properties applicable to chemical vapor deposition (CVP) for thin film and laboratory standard impurity levels for short and long term physical possession and to allow for exposure and controlled risk to industrial demand fluctuations reflected in the global tantulum price. Coins are manufactured and minted under written SOPs (standard operating procedures) to assure quality and consistency by American Elements' AE Planchet of Ultra High Purity Metal Metals™ custom synthesis and refining group. Besides tantulum coins, tantulum bars and tantulum ingots may be purchased by funds, currency reserves, exchange-traded funds (ETFs), private investors, collectors and hobbyists to take direct physical title and possession of the metal with risk exposure from shortages or chemical/physical technology changes, such as in solar energy, and fuel cell developments, equivalent to movements in the industrial application price of Tantulum. American Elements offers bonded short and long term warehouse inventory services for AE Bullion™ coins to investors, funds and collectors who do not wish to take physical custody of the metal or lack secure storage or warehouse capabilities. The lowest possible coin unit price to Tantulum melt value ratio is maintained through state of the art mint and die systems and analytically certified rounds (planchet or flan) refined and pressed to exacting purity and weight. We also produce Tantulum as rod, pellets, powder, pieces, disc, granules, and wire, as nanoparticles and in compound forms, such as oxide. Tantulum Coins may be purchased in bulk or small quantity. Portfolios of different elemental metal coins or bars may also be structured and purchased from the AE Bullion™ group allowing for strategic risk allocation and indexing across a basket of metals.

Etching of Medieval Minting Equipment and Processes Tantalum is a Block D, Group 5, Period 6 element. The 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 it's Van der Waals radius is 200.pm. 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.

Formula CAS No. Appearance Molecular Weight
Ta 7440-25-7 Silvery-gray 180.94
PRODUCT CATALOG Submicron & Nanopowder Tolling Ultra High Purity Sputtering Target Crystal Growth Rod, Plate, Powder, etc.
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Recent Research & Development for Tantalum

  • A Pyrazolate-Based Metalorganic Tantalum Precursor That Exhibits High Thermal Stability and Its Use in the Atomic Layer Deposition of Ta(2)O(5). J Am Chem Soc. 2007 Sep 26; [Epub ahead of print]

  • Reactivity of niobium(v) and tantalum(v) halides with carbonyl compounds: Synthesis of simple coordination adducts, C-H bond activation, C[double bond, length as m-dash]O protonation, and halide transfer. Dalton Trans. 2007 Oct 10;(38):4343-51. Epub 2007 Aug 6.

  • Assessment of three-dimensional stent-graft dynamics by using fluoroscopic roentgenographic stereophotogrammetric analysis. J Vasc Surg. 2007 Oct;46(4):773-779. Epub 2007 Aug 30.

  • Dinitrogen dissociation on an isolated surface tantalum atom. Science. 2007 Aug 24;317(5841):1056-60.

  • Evolution of tibial fixation in total knee arthroplasty. J Arthroplasty. 2007 Jun;22(4 Suppl 1):25-9.

  • Blackening of choroidal hemangioma after tantalum clip surgery. Arch Ophthalmol. 2007 Aug;125(8):1136. No abstract available.

  • Porous tantalum in reconstructive surgery of the knee: a review. J Knee Surg. 2007 Jul;20(3):185-94. Review.

  • Occupational radiation exposures of artisans mining columbite-tantalite in the eastern Democratic Republic of Congo. J Radiol Prot. 2007 Jun;27(2):187-95. Epub 2007 May 24.

  • Dosimetric impact of tantalum markers used in the treatment of uveal melanoma with proton beam therapy. Phys Med Biol. 2007 Jul 7;52(13):3979-90. Epub 2007 Jun 6.

  • Robust inorganic membranes from detachable ultrathin tantalum oxide films. Nano Lett. 2007 Sep;7(9):2676-83. Epub 2007 Jul 31.

  • One-step sol-gel preparation and enhanced photocatalytic activity of porous polyoxometalate-tantalum pentoxide nanocomposites.
    J Colloid Interface Sci. 2007 Jan 19; [Epub ahead of print]

  • Synthesis, Crystal Structure, and Properties of Two Modifications of MgB(12)C(2).
    Chemistry. 2007 Jan 19; [Epub ahead of print]

  • Formation of Dense Self-assembled Monolayers of (n-Decyl)trichlorosilanes on Ta/Ta(2)O(5).
    Langmuir. 2007 Jan 16;23(2):443-451.

  • Well-Defined Surface Imido Amido Tantalum(V) Species from Ammonia and Silica-Supported Tantalum Hydrides.
    J Am Chem Soc. 2007 Jan 10;129(1):176-186.

  • Porous tantalum implant in early osteonecrosis of the hip preliminary report on operative, survival, and outcomes results.
    J Arthroplasty. 2007 Jan;22(1):26-31.

  • Synthesis of fullerene-like tantalum disulfide nanoparticles by a gas-phase reaction and laser ablation.
    Small. 2005 Nov;1(11):1100-9.

  • High-oxidation-state neutral and cationic tantalum(IV) alkyl complexes that are stable toward beta-hydrogen and beta-methyl eliminations.
    J Am Chem Soc. 2006 Dec 20;128(50):16052-3. No abstract available.

  • Formation of highly ordered arrays of dimples on tantalum at the nanoscale.
    Nano Lett. 2006 Dec;6(12):2995-9.

  • Enhancement of protein adsorption induced by surface roughness.
    Langmuir. 2006 Dec 19;22(26):10885-8.

  • Bone nanostructure near titanium and porous tantalum implants studied by scanning small angle x-ray scattering.
    Eur Cell Mater. 2006 Nov 30;12:81-91.

 

 

 

 

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