Chemical Formula: Si
Atomic Number: 14
Atomic Weight: 28.0855
CAS No: 7440-21-3
Melting Point 1414 °C
Density: 2.329 g/cm3
Mohs Hardness: 7
Magnetic Ordering: Diamagnetic
Thermal Conductivity: 149 W/(m·K)
Silicon is the second most abundant element in the earth’s crust when measured by mass. A semi-metal (or metalloid), silicon has semiconductive properties that make it a critical substrate material for use in modern electronics. More than half of all silicon extracted each year, however, is refined as ferro-silicon for use as a de-oxidant in steelmaking. High purity silicon metal can be used as a de-oxidant, alloying agent, chemical precursor or grown into single crystals for use in solar and semiconductor materials.
Silicon powder is generally produced by grinding scrapped single crystal silicon wafers. In powdered form, silicon can be used in a variety of de-oxidizing applications, as well as in...Read more...
Metallurgical grade silicon metal (553 & 441) can be used as an alloying agent in the production of cast aluminum, as well as as a de-oxidizing agent in steelmaking. Strong and lightweight....Read more...
Roughly half of all metallic silicon (2202 & 3303) is used in the production of chemical products. Chemical grade silicon is used to make silicones, including sealants and lubricants, silanes, such as...Read more...
SMI Ltd. is able to supply scrap and broken silicon IC grade wafers in purities to 9N. The wafers are generally 15-30cm in size and 1mm thick. Please do not hesitate to contact us...Read more...