Silicon Powder



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Product Code Available Product Forms Request A Quote
SI-E-02-P (2N) 99% Silicon Powder Request
SI-E-03-P (3N) 99.9% Silicon Powder Request
SI-E-04-P (4N) 99.99% Silicon Powder Request
SI-E-05-P (5N) 99.999% Silicon Powder Request


Molecular Weight 28.08
Appearance Silvery
Melting Point 1414 °C
Boiling Point 2900 °C
Density 2330 kg/m3
Tensile Strength N/A
Thermal Conductivity 1.49 W/cm/K @ 298.2 K
Electronegativity 1.8 Paulings
Specific Heat 0.168 Cal/g/K @ 25 °C
Heat of Vaporization 40.6 K-Cal/gm atom at 2355 °C
Heat of Fusion 9.47 Cal/gm mole

Health & Safety Info  |  MSDS / SDS

Signal Word Warning
Hazard Statements H228
Hazard Codes F
Risk Codes 11
Safety Statements 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) N/A


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 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.



Chemical Identifiers

Formula Si
CAS 7440-21-3
Pubchem CID 5461123
MDL MFCD00085311
EC No. 231-130-8
Beilstein Registry No. N/A
InchI Identifier InChI=1S/Si

Packaging Specifications

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.

Related Products & Element Information

See more Silicon products. Silicon (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 SiliconSilica (or silicon dioxide), 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.