Barium Circle

High Purity Ba Metal Circles
CAS 7440-39-3

Product Product Code Order or Specifications
(2N) 99% Barium Circle BA-M-02-CRCL Contact American Elements
(3N) 99.9% Barium Circle BA-M-03-CRCL Contact American Elements
(4N) 99.99% Barium Circle BA-M-04-CRCL Contact American Elements
(5N) 99.999% Barium Circle BA-M-05-CRCL Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.
Ba 7440-39-3 24881555 5355457 MFCD00134031 231-149-1 N/A [Ba] InChI=1S/Ba DSAJWYNOEDNPEQ-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
137.33 Yellowish-White 3.5 gm/cc N/A 725 °C 1640 °C 20.184 W/cm/K @ 298.2 K N/A 0.9 Paulings 0.046 Cal/g/K @ 25 °C 35.7 K-cal/gm atom at 1640 °C 1.83 Cal/gm mole Safety Data Sheet

American Elements specializes in producing high purity Barium Circles with the highest possible densityHigh Purity (99.99%) Metallic Circleand smallest possible average grain sizes for use in semiconductor, chemical vapor deposition (CVD) and physical vapor deposition (PVD) display and optical applications. Our standard Circle sizes range from 1" to 8" in diameter and from 2mm to 1/2" thick. We can also provide Circles outside this range. 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 such as nanoparticles (See also application discussion at Nanotechnology Information and at Quantum Dots) and in the form of solutions and organometallics. See safety data and research below and pricing/lead time above. We also produce Barium as rod, pellets, powder, pieces, granules, ingot, wire, and in compound forms, such as oxide. Other shapes are available by request.

Barium (Ba) and molecular weight, atomic number and elemental symbolBarium (atomic symbol: Ba, atomic number: 56) is a Block S, Group 2, Period 6 element with an atomic weight of 137.27. The number of electrons in each of barium's shells is [2, 8, 18, 18, 8, 2] and its electron configuration is [Xe] 6s2. Barium Bohr ModelBarium is a member of the alkaline-earth metals. The barium atom has a radius of 222 pm and a Van der Waals radius of 268 pm. Barium was discovered by Carl Wilhelm Scheele in 1772 and first isolated by Humphry Davy in 1808. Elemental Barium In its elemental form, barium is a soft, silvery-gray metal. Industrial applications for barium include acting as a "getterer," or unwanted gas remover, for vacuum tubes, and as an additive to steel and cast iron. Barium is also alloyed with silicon and aluminum as load-bearing alloys. The main commercial source of barium is the mineral barite (BaSO4); it does not occur naturally as a free element . The name barium is derived from the Greek word "barys," meaning heavy. For more information on barium, including properties, safety data, research, and American Elements' catalog of barium products, visit the Barium Information Center.

UN 1400 4.3/PG 2
Exclamation Mark-Acute Toxicity Flame-Flammables      

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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 Barium

  • Structural and optical properties of Er(3+)/Yb(3+) doped barium titanate phosphor prepared by co-precipitation method. Mahata MK, Kumar K, Rai VK. Spectrochim Acta A Mol Biomol Spectrosc. 2014.
  • One- and two-particle effects in the electronic and optical spectra of barium fluoride. Cadelano E, Furthmüller J, Cappellini G, Bechstedt F. J Phys Condens Matter. 2014 Mar.
  • Dielectric properties of barium titanate supramolecular nanocomposites. Lee KH, Kao J, Parizi SS, Caruntu G, Xu T. Nanoscale. 2014.
  • Lightweight Bilayer Barium Sulfate-Bismuth Oxide Composite Thyroid Collars for Superior Radiation Protection in Fluoroscopy-guided Interventions: A Prospective Randomized Controlled Trial. Uthoff H, Benenati MJ, Katzen BT, Peña C, Gandhi R, Staub D, Schernthaner M. Radiology. 2014 Feb.
  • Surface-Initiated Polymerization from Barium Titanate Nanoparticles for Hybrid Dielectric Capacitors. Paniagua SA, Kim Y, Henry K, Kumar R, Perry JW, Marder SR. ACS Appl Mater Interfaces. 2014 Feb.
  • Transformation of Barium-Titanium Chloro-Alkoxide Compound to BaTiO3 Nanoparticles by BaCl2 Elimination. Kosinska-Klähn M, John L, Drag-Jarzabek A, Utko J, Petrus R, Jerzykiewicz LB, Sobota P. Inorg Chem. 2014 Feb.
  • Barium recovery by crystallization in a fluidized-bed reactor: Effects of pH, Ba/P molar ratio and seed. Su CC, Reano RL, Dalida ML, Lu MC. Chemosphere. 2014 Jan.
  • Rhodium-Doped Barium Titanate Perovskite as a Stable p-Type Semiconductor Photocatalyst for Hydrogen Evolution under Visible Light. Maeda K. ACS Appl Mater Interfaces. 2014 Jan.
  • Enantiomeric Separations of Chiral Sulfonic and Phosphoric Acids with Barium-Doped Cyclofructan Selectors via an Ion Interaction Mechanism. Smuts JP, Hao XQ, Han Z, Parpia C, Krische MJ, Armstrong DW. Anal Chem. 2014 Jan.
  • Radium and Barium Removal through Blending Hydraulic Fracturing Fluids with Acid Mine Drainage. Kondash AJ, Warner NR, Lahav O, Vengosh A. Environ Sci Technol. 2014 Jan.
  • Structural and optical properties of Er3+/Yb3+ doped barium titanate phosphor prepared by co-precipitation method. Mahata MK, Kumar K, Rai VK. Spectrochim Acta A Mol Biomol Spectrosc. 2014 Jan.
  • Barium Peritonitis in Small Animals. Ko JJ, Mann FA. J Vet Med Sci. 2014 Jan.
  • Synthesis, characterization and reactivity of potassium and barium complexes containing phosphane-borane stabilized methanides. Langer J, Görls H. Dalton Trans. 2014 Jan.
  • Molecular Structural Transformations Induced by Spatial Confinement in Barium Fluoride Cells. Vijay R, Polavarapu PL. J Phys Chem A. 2013 Dec.
  • Poly(vinylidene-trifluoroethylene)/ barium titanate composite for in vivo support of bone formation. Lopes HB, Santos TD, de Oliveira FS, Freitas GP, de Almeida AL, Gimenes R, Rosa AL, Beloti MM. J Biomater Appl. 2013.
  • Coating barium titanate nanoparticles with polyethylenimine improves cellular uptake and allows for coupled imaging and gene delivery. Dempsey C, Lee I, Cowan KR, Suh J. Colloids Surf B Biointerfaces. 2013 Dec.
  • Incidence of clinically silent malrotation detected on barium swallow examination in children. Atkin KL, Chowdhury MM, Bartlett M. J Med Imaging Radiat Oncol. 2013 Dec.
  • Effect of barium ferrite particle size on detachment efficiency in magnetophoretic harvesting of oleaginous Chlorella sp. Seo JY, Lee K, Lee SY, Jeon SG, Na JG, Oh YK, Park SB. Bioresour Technol. 2013 Dec.
  • Lightweight Bilayer Barium Sulfate-Bismuth Oxide Composite Thyroid Collars for Superior Radiation Protection in Fluoroscopy-guided Interventions: A Prospective Randomized Controlled Trial. Uthoff H, Benenati MJ, Katzen BT, Peña C, Gandhi R, Staub D, Schernthaner M.
  • High-sensitivity accelerometer composed of ultra-long vertically aligned barium titanate nanowire arrays. Koka A, Sodano HA. Nat Commun. 2013 Nov.