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Silicon Metal,(7N) 99.99999% Silicon

Product Code : HP-Si-7N-CU

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.

ATT provides silicon powder (Silicon metal powder) that is used widely in semiconductor technology, computer microchips, transistors and solar cells. Silicon powder is also used to manufacture other silicon compounds. Our silicon powder is produced using minimally sized grains, mesh size ranging from 100mesh to 325 mesh. Other size range can be customized. We also provide silicon sputtering target.


Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.

Product Product Code Purity Size Contact Us
Silicon MetalHP-Si-2N-CU99%Customized
Silicon MetalHP-Si-4N-CU99.99%Customized
Silicon MetalHP-Si-6N-CU99.9999%Customized
Silicon MetalHP-Si-7N-CU99.99999%Customized
Silicon MetalHP-Si-NN-CUCustomizedCustomized

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.

ATT provides silicon powder (Silicon metal powder) that is used widely in semiconductor technology, computer microchips, transistors and solar cells. Silicon powder is also used to manufacture other silicon compounds. Our silicon powder is produced using minimally sized grains, mesh size ranging from 100mesh to 325 mesh. Other size range can be customized. We also provide silicon sputtering target.


Synonyms

Silicon Metal Specification

Size:customized

Purity:2N(99%), 3N5(99.95%), 4N(99.99%), 4N5(99.995%),5N(99.999%),6N(99.9999%),7N(99.99999%).

Per your request or drawing

We can customized as required

Properties(Theoretical)

Molecular Weight28.08
AppearanceSilvery
Melting Point1414 °C
Boiling Point2900 °C
Density2340 kg/m3
Material conditionPolycrystalline
Poisson's ratio ( Polycrystalline )0.42
Tensile modulus ( GPa ) (   Polycrystalline )113
Electrical Resistivity3-4 microhm-cm @ 0 °C
Electronegativity1.8 Paulings
Heat of Fusion9.47 Cal/gm mole
Heat of Vaporization40.6 K-Cal/gm atom at 2355 °C
Poisson's Ratio0.064 - 0.28
Specific Heat0.168 Cal/g/K @ 25 °C
Bulk modulus ( GPa ) ( Polycrystalline   )100
Hardness - Mohs ( Polycrystalline )7
Thermal Conductivity1.49 W/cm/K @ 298.2 K
Thermal Expansion(25 °C) 2.6 µm·m-1·K-1
Vickers HardnessN/A
Young's Modulus51-80 GPa
Thermal emf against Pt (cold 0C - hot   100C) ( mV )-41.56
Latent heat of evaporation ( J g⁻¹ )13700


Chemical composition

Purity:5N(99.999%)

ElementValue
Al<1 PPM
Cd<1 PPM
Ca<1 PPM
Cu<1 PPM
Ba<2 PPM
Bi<2 PPM

We can customized as required


Applications of Silicon Metal

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. ATT provides silicon powder (Silicon metal powder) that is used widely in semiconductor technology, computer microchips, transistors and solar cells. Silicon powder is also used to manufacture other silicon compounds.

 


Packing of Silicon Metal

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’ High Purity Silicon Metal 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 FormulaSi
CAS #:7440-21-3
MDL NumberMFCD00085311
EC No.231-130-8
Beilstein/Reaxys No.N/A
Pubchem CID5461123
SMILES[Si]
InchI IdentifierInChI=1S/Si
InchI KeyXUIMIQQOPSSXEZ-UHFFFAOYSA-N



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