Silicon Powder

High Purity Si Powder
CAS 7440-21-3

Product Product Code Order or Specifications
(2N) 99% Silicon Powder SI-M-02-P Contact American Elements
(3N) 99.9% Silicon Powder SI-M-03-P Contact American Elements
(4N) 99.99% Silicon Powder SI-M-04-P Contact American Elements
(5N) 99.999% Silicon Powder SI-M-05-P Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.
Si 7440-21-3 24882537 5461123 MFCD00085311 231-130-8 N/A [SiH4] InChI=1S/Si XUIMIQQOPSSXEZ-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
28.08 Silvery 2330 kg/m³ N/A 1414 °C 2900 °C 1.49 W/cm/K @ 298.2 K 3-4 microhm-cm @ 0°C 1.8 Paulings 0.168 Cal/g/K @ 25°C 40.6 K-Cal/gm atom at 2355 °C 9.47 Cal/gm mole Safety Data Sheet

Ultra High Purity Metal PowdersAmerican Elements specializes in producing high purity Silicon Powder with the smallest possible average grain sizes for use in preparation of pressed and bonded sputtering targets and 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). Powders are also useful in any application where high surface areas are desired such as water treatment and in fuel cell and solar applications. Nanoparticles (See also Nanotechnology Information and Quantum Dots) also produce very high surface areas. Our standard Powder particle sizes average in the range of - 325 mesh, - 100 mesh, 10-50 microns and submicron (< 1 micron). We can also provide many materials in the nanoscale range. See safety data and research below and pricing/lead time above. We also produce Silicon as rod, ingot, pieces, pellets, disc, granules, wire, and in compound forms, such as oxide. Other shapes are available by request.

Silicon (Si) atomic and molecular weight, atomic number and elemental symbolSilicon (atomic symbol: Si, atomic number: 14) is a Block P, Group 14, Period 3 element with an atomic weight of 28.085. Silicon Bohr MoleculeThe number of electrons in each of Silicon's shells is 2, 8, 4 and its electron configuration is [Ne] 3s2 3p2. The silicon atom has a radius of 111 pm and a Van der Waals radius of 210 pm. Silicon was discovered and first isolated by Jöns Jacob Berzelius in 1823. Silicon makes up 25.7% of the earth's crust, by weight, and is the second most abundant element, exceeded only by oxygen. The metalloid is rarely found in pure crystal form and is usually produced from the iron-silicon alloy Ferrosilicon.Elemental Silicon Silica (or silicon oxide), as sand, is a principal ingredient of glass, one of the most inexpensive of materials with excellent mechanical, optical, thermal, and electrical properties. Ultra high purity silicon can be doped with boron, gallium, phosphorus, or arsenic to produce silicon for use in transistors, solar cells, rectifiers, and other solid-state devices which are used extensively in the electronics industry.The name Silicon originates from the Latin word "silex" which means flint or hard stone. For more information on silicon, including properties, safety data, research, and American Elements' catalog of silicon products, visit the Silicon Information Center.

Material Safety Data Sheet MSDS
Signal Word Warning
Hazard Statements H228
Hazard Codes F
Risk Codes 11
Safety Precautions 16-33-36
RTECS Number VW0400000
Transport Information UN 1346 4.1/PG 3
WGK Germany 2
Globally Harmonized System of
Classification and Labelling (GHS)

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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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Production Catalog Available in 36 Countries & Languages

Recent Research & Development for Silicon

  • Label-free electrochemical immunosensor based on gold-silicon carbide nanocomposites for sensitive detection of human chorionic gonadotrophin. Yang L, Zhao H, Fan S, Deng S, Lv Q, Lin J, Li CP. Biosens Bioelectron. 2014.
  • Synthesis and characterization of a stable, label-free optical biosensor from TiO2-coated porous silicon. Li J, Sailor MJ. Biosens Bioelectron. 2014 May.
  • Multiplex electrical detection of avian influenza and human immunodeficiency virus with an underlap-embedded silicon nanowire field-effect transistor. Kim JY, Ahn JH, Moon DI, Park TJ, Lee SY, Choi YK. Biosens Bioelectron. 2014 May
  • Specific rare cell capture using micro-patterned silicon nanowire platform. Lee SK, Kim DJ, Lee G, Kim GS, Kwak M, Fan R. Biosens Bioelectron. 2014 Apr.
  • A size selective porous silicon grating-coupled Bloch surface and sub-surface wave biosensor. Rodriguez GA, Ryckman JD, Jiao Y, Weiss SM. Biosens Bioelectron. 2014 Mar.
  • Highly sensitive covalently functionalised integrated silicon nanowire biosensor devices for detection of cancer risk biomarker. Biosens Bioelectron. 2014 create date:2013/09/26 | first author:Mohd Azmi MA
  • Black silicon SERS substrate: Effect of surface morphology on SERS detection and application of single algal cell analysis. Deng YL, Juang YJ. Biosens Bioelectron. 2014 Mar
  • Monitoring intracellular calcium in response to GPCR activation using thin-film silicon photodiodes with integrated fluorescence filters. Biosens Bioelectron. 2014 create date:2013/09/24 | first author:Martins SA
  • Silicon species in seawater. Spectrochim Acta A Mol Biomol Spectrosc. 2014 create date:2013/10/12 | first author:Exley C
  • Letter to Editor: Concerning the comments Silicon Species in Seawater" by Professor Exley and Professor Sjöberg." Spectrochim Acta A Mol Biomol Spectrosc. 2014 create date:2013/10/03 | first author:Tanaka M
  • The influence of inelastic scattering on EFTEM images-exemplified at 20kV for graphene and silicon. Lee Z, Rose H, Hambach R, Wachsmuth P, Kaiser U. Ultramicroscopy. 2013 Nov
  • Polycation-functionalized nanoporous silicon particles for gene silencing on breast cancer cells. Biomaterials. 2014 create date:2013/10/10 | first author:Zhang M
  • Tumour homing peptide-functionalized porous silicon nanovectors for cancer therapy. Kinnari PJ, Hyvönen ML, Mäkilä EM, Kaasalainen MH, Rivinoja A, Salonen JJ, Hirvonen JT, Laakkonen PM, Santos HA. Biomaterials. 2013 Dec
  • Poly-silicon nanowire sensor for sodium chloride concentration measurement. Biomed Mater Eng. 2014 create date:2013/11/12 | first author:Kan YC
  • Fabrication of broadband poly(vinylidene difluoride-trifluroethylene) line-focus ultrasonic transducers for surface acoustic wave measurements of anisotropy of a (100) silicon wafer. Lu Y, He C, Song G, Wu B, Chung CH, Lee YC. Ultrasonics. 2014 Jan
  • Electrodeposition of silicon nanotubes at room temperature using ionic liquid. Mallet J, Martineau F, Namur K, Molinari M. Phys Chem Chem Phys. 2013 Oct.
  • Sensitive detection of protein and miRNA cancer biomarkers using silicon-based photonic crystals and a resonance coupling laser scanning platform. George S, Chaudhery V, Lu M, Takagi M, Amro N, Pokhriyal A, Tan Y, Ferreira P, Cunningham BT. Lab Chip. 2013 Oct.
  • Supercritical carbon dioxide assisted silicon based finishing of cellulosic fabric: A novel approach. Mohamed AL, Er-Rafik M, Moller M. Carbohydr Polym. 2013 Oct.
  • A computational investigation of nickel (silicides) as potential contact layers for silicon photovoltaic cells. Butler KT, Harding JH. J Phys Condens Matter. 2013 Oct.
  • The mechanisms of surface chemistry effects of mesoporous silicon nanoparticles on immunotoxicity and biocompatibility. Shahbazi MA, Hamidi M, Mäkilä EM, Zhang H, Almeida PV, Kaasalainen M, Salonen JJ, Hirvonen JT, Santos HA. Biomaterials.