Silicon tetrachloride

PCC Rokita SA / Chlorine Business Unit
Chemical name
Silicon tetrachloride
CO2 Low emissions CO2 Low emissions Photovoltaics Photovoltaics High efficiency High efficiency High pure High pure ISO 14001 ISO 14001 ISO 50001 ISO 50001 ISO 9001 ISO 9001 New New ISO 45001 ISO 45001 Fibre optic technologies Fibre optic technologies Universal product Universal product
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Silicon tetrachloride is a product of technical purity (99.6%) with the amount of free chlorine not exceeding 0.2%. It is used as a raw material/intermediate in the production of metallurgical grade silicon, silica and other silicon-based substances.

The largest amounts of the produced tetrachlorosilane are used for the production of high-quality fumed silica. The product is also a precursor in the production of orthosilicate acid esters, including tetraethoxysilane (TEOS) and tetramethoxysilane (TMOS). The derivatives are the starting point for the production of aerogels – products with high market potential, strongly developing in the construction, automotive and pharmaceutical industries.

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Properties and applications
  • main raw material in the production of fumed silica,
  • raw material for the production of ultrapure silicon tetrachloride for optical fibre preforms,
  • precursor in the semiconductor production proces,
  • crosslinker for styrene butadiene rubber (SBR),
  • metallurgical grade silicon precursor.

Markets and applications
Building & Construction
Fibre optic technologies
Power industry / Photovoltaics
Raw materials and intermediates

Raw material for fumed silica
Raw materials & intermediates


Chloralkali, raw materials and intermediates
Chlorosilanes, raw materials and intermediates
Specialty Products / Specialty additives

Alternative names
Silicon tetrachloride, Tetrachlorosilane, silicon (IV) chloride, silicon chloride, technical silicon tetrachloride.
Manufacturer: PCC Rokita SA

PCC Rokita SA is one of the largest chemical companies in Poland as well as Central and Eastern Europe. Its activity includes the production of chloroalkali, polyether polyols, polyalkylene glycols and phosphorus derivatives.

PCC Group

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