7440-42-8
| Product | Product Code | Order or Specifications |
| (2N) 99% Boron Chunk | B-M-02-CK |  |
| (3N) 99.9% Boron Chunk | B-M-03-CK | |
| (4N) 99.99% Boron Chunk | B-M-04-CK | |
| (5N) 99.999% Boron Chunk | B-M-05-CK | |
| CHEMICAL IDENTIFICATION |
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 |
| 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 Chunk with the highest possible density and smallest possible average grain sizes for use in 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 Chunk pieces are amorphous uniform pieces in sizes ranging from 5-15 mm. Chunk 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 granules, 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 Pharmacopeia/British Pharmacopeia) and follows applicable ASTM testing standards.See safety data and research below and pricing/lead time above. We also produce Boron as rod, pellets, powder, pieces, disc, ingot, wire, and in compound forms, such as oxide. Other shapes are available by request.
Boron 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 
boron 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 
glasses. 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. 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.
Borides are all hard, high-melting materials with metal-like conductivity. They are stable to nonoxidizing acids but break down in strong oxidizing agents and strong alkalis. Borides are used in semiconductors, superconductors, diamagnetic, paramagnetic, ferromagnetic, anti-ferromagnetic, turbine blades, and rocket nozzles. Boride have recently been discovered to be superconductive and the ultra-incompressible.
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Toxicity Safety & Handling |
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| Signal Word | Hazard Statements | Hazard Codes | Risk Codes | Safety Precautions | RTECS No. | Transport Information | WGK Germany |
| Warning | H302 | Xn | 22 | N/A | ED7350000 | N/A | 3 |
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). Bullion and bar forms are best if purchasing solely for physical possession and risk exposure. |
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