High Purity W
|Product||Product Code||Request Quote|
|(2N) 99% Tungsten Samples||W-M-02-SAMP||Request Quote|
|(3N) 99.9% Tungsten Samples||W-M-03-SAMP||Request Quote|
|(4N) 99.99% Tungsten Samples||W-M-04-SAMP||Request Quote|
|(5N) 99.999% Tungsten Samples||W-M-05-SAMP||Request Quote|
|Formula||CAS No.||PubChem CID||MDL No.||EC No||Beilstein
|PROPERTIES||Mol. Wt.||Appearance||Density||Tensile Strength||Melting Point||Boiling Point||Thermal Conductivity||Electrical Resistivity||Electronegativity||Specific Heat||Heat of Vaporization||Heat of Fusion||MSDS|
|183.85||Silvery||19.3 g/cm3||750 MPa||3410 °C||5900 °C||1.73
|5.65 μΩ·m (27°C)||1.7 Paulings||0.133
J/g mol (20°C)
|35.3 kJ/mol||Safety Data Sheet|
Tungsten samples are suitable for metallurgical analysis, chemical analysis, physical testing, mechanical testing, failure analysis, fire & flammability testing, contaminant identification and weatherization studies. Metallurgical testing is used to determine quality by analyzing the microstructure of a sample under a microscope. American Elements specializes in producing irregular shaped Tungsten Samples 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). Tungsten samples are available in dimensions appropriate for numerous testing procedures. Materials are produced using crystallization, solid state and other ultra high purification processes such as sublimation. Tungsten samples are suitable for metallurgical analysis, chemical analysis, physical testing, mechanical testing, failure analysis, fire & flammability testing, contaminant identification and weatherization studies. Metallurgical testing is used to determine quality by analyzing the microstructure of a sample under a microscope. 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 () and in the form of solutions and organometallics. We also produce Tungsten as disc, granules, ingot, pellets, pieces, powder, and rod. Other shapes are available by request. A wide variety of American Elements products are available in sample form for materials and metallurgical testing procedures. Tungsten samples vary in size and thickness.
Tungsten (atomic symbol: W, atomic number: 74) is a Block D, Group 6, Period 6 element with an atomic weight of 183.84. The number of electrons in each of tungsten's shells is [2, 8, 18, 32, 12, 2] and its electron configuration is [Xe] 4f14 5d4 6s2. The tungsten atom has a radius of 139 pm and a Van der Waals radius of 210 pm. Tungsten was discovered by Torbern Bergman in 1781 and first isolated by Juan José Elhuyar and Fausto Elhuyar in 1783. In its elemental form, tungsten has a grayish white, lustrous appearance. Tungsten has the highest melting point of all the metallic elements and a density comparable to that or uranium or gold and about 1.7 times that of lead. Tungsten alloys are often used to make filaments and targets of x-ray tubes. It is found in the minerals scheelite (CaWO4) and wolframite [(Fe,Mn)WO4]. In reference to its density, Tungsten gets its name from the Swedish words tung and sten, meaning heavy stone. For more information on tungsten, including properties, safety data, research, and American Elements' catalog of tungsten products, visit the Tungsten element page.
|HEALTH, SAFETY & TRANSPORTATION INFORMATION|
|Material Safety Data Sheet||MSDS|
|Globally Harmonized System of
Classification and Labelling (GHS)
|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.|
Recent Research & Development for Tungsten
- Synthesis of Centimeter-Scale Monolayer Tungsten Disulfide Film on Gold Foils. Yun SJ, Chae SH, Kim H, Park JC, Park JH, Han GH, Lee JS, Kim SM, Oh HM, Seok J, Jeong MS, Kim KK, Lee YH. ACS Nano. 2015 Apr 14. : ACS Nano
- Controlled Preferential Oxidation of Grain Boundaries in Monolayer Tungsten Disulfide for Direct Optical Imaging. Rong Y, He K, Pacios M, Robertson AW, Bhaskaran H, Warner JH. ACS Nano. 2015 Apr 14. : ACS Nano
- Phosphorus-Modified Tungsten Nitride/Reduced Graphene Oxide as a High-Performance, Non-Noble-Metal Electrocatalyst for the Hydrogen Evolution Reaction. Yan H, Tian C, Wang L, Wu A, Meng M, Zhao L, Fu H. Angew Chem Int Ed Engl. 2015 Mar 30.: Angew Chem Int Ed Engl
- Surfactant-Free Synthesis of Plasmonic Tungsten Oxide Nanowires with Visible-Light-Enhanced Hydrogen Generation from Ammonia Borane. Xue C, Lou Z, Gu Q, Xu L, Liao Y. Chem Asian J. 2015 Apr 15.: Chem Asian J
- Mesoporous Carbon Nitride-Tungsten Oxide Composites for Enhanced Photocatalytic Hydrogen Evolution. Kailasam K, Fischer A, Zhang G, Zhang J, Schwarze M, Schröder M, Wang X, Schomäcker R, Thomas A. ChemSusChem. 2015 Mar 20.: ChemSusChem
- Ultrafast and Low Temperature Synthesis of Highly Crystalline and Patternable Few-Layers Tungsten Diselenide by Laser Irradiation Assisted-Selenization Process. Chen YZ, Medina H, Su TY, Li JG, Cheng KY, Chiu PW, Chueh YL. ACS Nano. 2015 Mar 13.
- One-step Breaking and Separating Emulsion by Tungsten Oxide Coated Mesh. Lin X, Lu F, Chen Y, Liu N, Cao Y, Xu L, Wei Y, Feng L. ACS Appl Mater Interfaces. 2015 Mar 10.
- Effect of local A-site strain on dipole stability in A6GaNb9O30 (A = Ba, Sr, Ca) tetragonal tungsten bronze relaxor dielectrics. Miller AJ, Rotaru A, Arnold DC, Morrison FD. Dalton Trans. 2015 Feb 17.
- Layer-Dependent Modulation of Tungsten Disulfide Photoluminescence by Lateral Electric Fields. He Z, Sheng Y, Rong Y, Lee GD, Li J, Warner JH. ACS Nano. 2015 Feb 23.
- Tungsten trioxide nanoplate array supported platinum as a highly efficient counter electrode for dye-sensitized solar cells. Song D, Cui P, Zhao X, Li M, Chu L, Wang T, Jiang B. Nanoscale. 2015 Mar 6.