Product Code : ME-Si-5N-PO
Silicon is the particular and important semiconductor element, it carries the typical properties of both metals and non-metals. After carbon, silcon is the most abundant element on earth, the abundance being 277,000 ppm. It is generally present as a silicate, these being found in many rocks, clays and soils. Silicon is obtained by reducing silica (sand, SiO₂), with carbon. Further purification of the element for applications requiring high purity material (e.g. semi conductor devices) is achieved by zone refining, the resulting purity being better than 1:10⁹. Silicon exists in two allotropic forms; brown silicon is a powder, whereas crystalline (metallic) silicon is grey and it is the latter which is more widely used. Bulk silicon is unreactive towards oxygen, water, acids (excluding HF), but is soluble in hot alkalis. Silicon has many applications in various industries; for example, ultra high purity silicon is used in the semiconductor industry as a result of its semiconducting properties. Silicon is also used as an alloying element in the manufacture of certain alloys (e.g. ferrosilicon, an alloy of iron and silicon which is used to introduce silicon into steel and cast iron). It is also used in the manufacture of glass.
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Product Information
Silicon is the particular and important semiconductor element, it carries the typical properties of both metals and non-metals. After carbon, silcon is the most abundant element on earth, the abundance being 277,000 ppm. It is generally present as a silicate, these being found in many rocks, clays and soils. Silicon is obtained by reducing silica (sand, SiO₂), with carbon. Further purification of the element for applications requiring high purity material (e.g. semi conductor devices) is achieved by zone refining, the resulting purity being better than 1:10⁹. Silicon exists in two allotropic forms; brown silicon is a powder, whereas crystalline (metallic) silicon is grey and it is the latter which is more widely used. Bulk silicon is unreactive towards oxygen, water, acids (excluding HF), but is soluble in hot alkalis. Silicon has many applications in various industries; for example, ultra high purity silicon is used in the semiconductor industry as a result of its semiconducting properties. Silicon is also used as an alloying element in the manufacture of certain alloys (e.g. ferrosilicon, an alloy of iron and silicon which is used to introduce silicon into steel and cast iron). It is also used in the manufacture of glass.
Synonyms
Silicon particles, Silicon microparticles, Silicon micropowder, Silicon micro powder, Silicon micron powder, Silicon submicron powder, Silicon sub-micron powder,Silicon Powder Specification
Size：Our standard powder particle sizes average in the range of - 325 mesh, - 100 mesh, 10-50 microns and submicron (< 1 micron).
Purity:2N(99%), 2N5(99.5%), 3N(99.9%),4N(99.99%), 5N(99.999%).
Per your request or drawing
We can customized as required
Properties（Theoretical）
| Molecular Weight | 28.08 |
| Appearance | Silvery |
| Melting Point | 1414 °C |
| Boiling Point | 2900 °C |
| Density | 2330 kg/m3 |
| Solubility in H2O | N/A |
| Electrical Resistivity | 3-4 microhm-cm @ 0 °C |
| Electronegativity | 1.8 Paulings |
| Heat of Fusion | 9.47 Cal/gm mole |
| Heat of Vaporization | 40.6 K-Cal/gm atom at 2355 °C |
| Poisson's Ratio | 0.064 - 0.28 |
| Specific Heat | 0.168 Cal/g/K @ 25 °C |
| Tensile Strength | N/A |
| Thermal Conductivity | 1.49 W/cm/K @ 298.2 K |
| Thermal Expansion | (25 °C) 2.6 µm·m-1·K-1 |
| Vickers Hardness | N/A |
| Young's Modulus | 51-80 GPa |
| Thermal emf against Pt (cold 0C - hot 100C) ( mV ) | -41.56 |
Chemical composition
Purity：5N（99.999%）
| Element | Value |
| Cr | 100 PPM |
| Fe | 1000 PPM |
| Mg | 100 PPM |
| Al | 500 PPM |
| Ti | 100 PPM |
| Mn | 200 PPM |
| Ni | 400 PPM |
Applications of Silicon Pellets
Most silicon is used commercially without being separated, often with very little processing of the natural minerals. Such use includes industrial construction with clays, silica sand, and stone. Silicates are used in Portland cement for mortar and stucco, and mixed with silica sand and gravel to make concrete for walkways, foundations, and roads. They are also used in whiteware ceramics such as porcelain, and in traditional silicate-based soda-lime glass and many other specialty glasses. Silicon compounds such as silicon carbide are used as abrasives and components of high-strength ceramics. Silicon is the basis of the widely used synthetic polymers called silicones.
Packing of Silicon Pellets
Standard Packing:
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. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.
ATTs’ Silicon Pellets is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
Chemical Identifiers
| Linear Formula | Si |
| CAS | 7440-21-3 |
| MDL Number | MFCD00085311 |
| EC No. | 231-130-8 |
| Beilstein/Reaxys No. | N/A |
| Pubchem CID | 5461123 |
| SMILES | [Si] |
| InchI Identifier | InChI=1S/Si |
| InchI Key | XUIMIQQOPSSXEZ-UHFFFAOYSA-N |
