Silicon 99.999% 2 grams

Silicon 99.999% 2 grams

 

Allied Chemicals GmbH (AL-GMBH) is a leading Specialty Chemicals & Science Based Company in Germany. With over 20 years of experience supplying to the manufacturing industry internationally, we deliver an extensive range of high quality Specialty Chemicals & Allied Products to several sectors.

The chemical preparation of all our products are synthesized. These substances possesses sterile effect, so you must be fully aware of what you are purchasing hence there’s no prejudice involved in the offer and acceptance.

Available for sale here is Silicon 99.999% 2 grams :

Silicon is a chemical element with atomic number 14 and chemical symbol Si, classified as a tetravalent metalloid and semiconductor that occurs in two allotropes: amorphous and crystalline forms.

Crystalline silicon appears as a hard, brittle solid with a blue-grey metallic lustre and a density of 2.329 g/cm³ at room temperature, where it exists as a solid with a melting point of 1414 °C and a boiling point of 3265 °C.

It is relatively inert but reacts with halogens and dilute alkalis, and is resistant to most acids except hydrofluoric acid.

As the second most abundant element in the Earth’s crust after oxygen, silicon constitutes approximately 27.7% by weight, primarily occurring in silicate minerals such as quartz (SiO₂) and various aluminosilicates that form rocks, sand, and clay.

Its three stable isotopes are ²⁸Si (92.2%), ²⁹Si (4.7%), and ³⁰Si (3.1%), with atomic mass averaging 28.085 u; silicon also has several radioactive isotopes, including ³²Si with a half-life of about 172 years.

First isolated in impure form in 1823 by Swedish chemist Jöns Jacob Berzelius through the reduction of silica with potassium fluorosilicate, pure silicon was later produced in 1854 by French chemist Henri Étienne Sainte-Claire Deville via heating silicon tetrachloride with sodium.

Silicon primarily occurs in nature as a component of silicate minerals, which dominate the Earth’s crust. Quartz (SiO₂), the most common silicon-bearing mineral, constitutes approximately 12% of the Earth’s crust by volume and is found in a wide range of igneous, metamorphic, and sedimentary rocks. It forms colorless to smoky crystals in granitic pegmatites and is a key constituent of sandstones and quartzites.

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