Boron Circle

High Purity B Circles
CAS 7440-42-8


Product Product Code Order or Specifications
(2N) 99% Boron Circle BO-M-02-CRCL Contact American Elements
(3N) 99.9% Boron Circle BO-M-03-CRCL Contact American Elements
(4N) 99.99% Boron Circle BO-M-04-CRCL Contact American Elements
(5N) 99.999% Boron Circle BO-M-05-CRCL 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
B 7440-42-8 24856149 5462311 MFCD00134034 231-151-2 N/A B InChI=1S/B ZOXJGFHDIHLPTG-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
10.811 Black/Brown 2.34 cryst. gm/cc N/A 2079 °C 2550 °C 0.274 W/cm/K @ 298.2 K 1.8 x 1012 microhm-cm @ 0 °C 2.0 Paulings 0.245 Cal/g/K @ 25 °C 128 K-Cal/gm atom at 2550 °C 5.3 Cal/gm mole Safety Data Sheet

American Elements specializes in producing high purity Boron Circles with the highest possible densityHigh Purity (99.99%) Boron 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. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. See safety data and research below and pricing/lead time above. We also produce Boron as rod, pellets, powder, pieces, granules, ingot, wire, and in compound forms, such as oxide. Other shapes are available by request.

Boron(B) atomic and molecular weight, atomic number and elemental symbolBoron is a Block P, Group 13, Period 2 element. The number of electrons in each of Boron's shells is 2, 3 and its electronic configuration is [He] 2s2 2p1. In its elemental form boron's CAS number is 7440-42-8. The boron atom has a radius of 79.5.pm and it's Van der Waals radius is 200.pm. Boron is not toxic. Boron has an energy band gap of 1.50 to 1.56 eV, which is higher than that of either silicon or germanium. Optical characteristics include transmitting portions of the infrared. Boron is a poor conductor of electricity at room temperature but a good conductor at high temperature. Boron in its elemental form is not toxic. Amorphous Elemental Boronboron is used in pyrotechnic flares to provide a distinctive green color, and in rockets as an igniter Boric acid is also an important boron compound with major markets in textile products. Boron compounds are also extensively used in the manufacture of borosilicate Boron Bohr Modelglasses. The isotope Boron-10 is used as a control for nuclear reactors, as a shield for nuclear radiation, and in instruments used for detecting neutrons. Boron nitride has remarkable properties and can be used to make a material as hard as diamond. The nitride also behaves like an electrical insulator but conducts heat like a metal. Boron also has lubricating properties similar to graphite. Recent Boron research has shown that a stable triple bond can be formed between two Boron atoms. Along with Carbon and Nitrogen, Boron is one of the few elements in the periodic table known to form stable compounds featuring triple bonds. Boron is found in borates, borax, boric acid, colemanite, kernite, and ulexite. Boron was first discovered by Sir Humphry Davy and J.L Gay-Lussac in 1808. The name Boron originates from a combination of carbon and the Arabic word 'buraqu meaning borax. See Boron research below.


HEALTH, SAFETY & TRANSPORTATION INFORMATION
Warning
H302
Xn
22
N/A
ED7350000
N/A
3
Exclamation Mark-Acute Toxicity        

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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 Boron

  • Boron sorption from aqueous solution by hydrotalcite and its preliminary application in geothermal water deboronation. Guo Q, Zhang Y, Cao Y, Wang Y, Yan W. Environ Sci Pollut Res Int. 2013 May 22.
  • Adsorption of nucleobase pairs on hexagonal boron nitride sheet: hydrogen bonding versus stacking. Ding N, Chen X, Wu CM, Li H. Phys Chem Chem Phys. 2013 May 21.
  • Isolation and characterization of indigenous Streptomyces and Lentzea strains from soils containing boron compounds in Argentina. Moraga NB, Poma HR, Amoroso MJ, Rajal VB. J Basic Microbiol. 2013 May 20. doi: 10.1002/jobm.201200714.
  • siRNAs modified with boron cluster and their physicochemical and biological characterization. Lesnikowski ZJ, Olejniczak A, Janczak S, Nawrot B, Sobczak M, Mikolajczyk B, Kwiatkowska A, Sochacki M. Bioconjug Chem. 2013 May 17.
  • Structural and electronic properties of a large-scale Moiré pattern of hexagonal boron nitride on Cu(111) studied with density functional theory. Koitz R, Seitsonen AP, Iannuzzi M, Hutter J. Nanoscale. 2013 May 17.
  • Boron doped diamond ultramicroelectrodes: a generic platform for sensing single nanoparticle electrocatalytic collisions. Wakerley D, Güell AG, Hutton LA, Miller TS, Bard AJ, Macpherson JV. Chem Commun (Camb). 2013 May 17.
  • Charge-Controlled Switchable CO2 Capture on Boron Nitride Nanomaterials. Sun Q, Li Z, Searles DJ, Chen Y, Lu GM, Du A. J Am Chem Soc. 2013 May 24.
  • Selecting boron fullerenes by cage-doping mechanisms. Boulanger P, Morinie`re M, Genovese L, Pochet P. J Chem Phys. 2013 May 14;138(18):184302.
  • Chitosan-coated boron nitride nanospheres enhance delivery of CpG oligodeoxynucleotides and induction of cytokines. Zhang H, Chen S, Zhi C, Yamazaki T, Hanagata N. Int J Nanomedicine. 2013;8:1783-93. doi: 10.2147/IJN.S43251. 2013 May 6.
  • Boron as a surrogate for N-nitrosodimethylamine (NDMA) rejection by reverse osmosis membranes in potable water reuse applications. Tu KL, Fujioka T, Khan SJ, Poussade Y, Roux A, Drewes JE, Chivas AR, Nghiem LD. Environ Sci Technol. 2013 May 13.
  • Extremely Electron-Rich, Boron-Functionalized, Icosahedral Carborane-Based Phosphinoboranes. Spokoyny AM, Lewis CD, Teverovskiy G, Buchwald SL. Organometallics. 2012 Dec 24;31(24):8478-8481.
  • Photoelectron spectroscopy of aromatic compound clusters of the B12 all-boron benzene: B12Au- and B12(BO)- Bai H, Zhai HJ, Li SD, Wang LS. Phys Chem Chem Phys. 2013 May 13.
  • Reversible Intercalation of Hexagonal Boron Nitride with Brønsted Acids. Kovtyukhova NI, Wang Y, Lv R, Terrones M, Crespi VH, Mallouk TE. J Am Chem Soc. 2013 May 24.
  • Repeated and Controlled Growth of Monolayer, Bilayer and Few-Layer Hexagonal Boron Nitride on Pt Foils. Gao Y, Ren W, Ma T, Liu Z, Zhang Y, Liu WB, Ma LP, Ma X, Cheng HM. ACS Nano. 2013 May 16.
  • Advance in Novel Boron Nitride Nanosheets to Nanoelectronic Device Applications. Sajjad M, Morell G, Feng P. ACS Appl Mater Interfaces. 2013 May 23.
  • Chemical Vapor Deposition and Characterization of Aligned and Incommensurate Graphene/Hexagonal Boron Nitride Heterostack on Cu(111). Roth S, Matsui F, Greber T, Osterwalder J. Nano Lett. 2013 May 14.
  • Porous boron nitride nanosheets for effective water cleaning. Lei W, Portehault D, Liu D, Qin S, Chen Y. Nat Commun. 2013;4:1777. doi: 10.1038/ncomms2818.
  • Boron azides in Staudinger oxidations and cycloadditions. Melen RL, Lough AJ, Stephan DW. Dalton Trans. 2013 May 8.
  • A Crossed Molecular Beam and Ab-Initio Investigation of the Reaction of Boron Monoxide (BO; X2S+) with Methylacetylene (CH3CCH; X1A1): Competing Atomic Hydrogen and Methyl Loss Pathways. Maity S, Parker DS, Dangi BB, Kaiser RI, Fau S, Perera A, Bartlett RJ. J Phys Chem A. 2013 May 22.
  • Flow-Injection MS/MS for Gas-Phase Chiral Recognition and Enantiomeric Quantitation of a Novel Boron-Containing Antibiotic (GSK2251052A) by the Mass Spectrometric Kinetic Method. Wu L, Vogt FG, Liu DQ. Anal Chem. 2013 May 21;85(10):4869-74. doi: 10.1021/ac401079x. 2013 May 7.