Siridion® STC 1000

Silicon tetrachloride; SiCl4

Typical Applications

Silicon tetrachloride is used in large scale for the production of pyrogenic silica, silicic acid esters and ester hydrolysates. In addition, it is used for cross- and end-linking of polymer chains either in anionic polymerization of styrene-butadiene-rubber (SBR).
High-purity silicon tetrachloride is used in the manufacturing of optical fibres, fused silica tubes or other geometries. Depending on your process and requirements we offer various high and ultra-high purity grades to ensure the purity for glass fibers with low attenuation rates and therefore enabling excellent signal flow and data to tansfer with ultra-high speed.
Furthermore, ultrapure silicon tetrachloride is an important precursor for deposition of the first layer of crystalline silicone by epitaxy within semiconductor manufacturing.

Benefits at a glance

Silicon tetrachloride is sensitive to hydrolysis and react vigorously with water and alcohols as well as with other compounds containing active hydrogen atoms. Chlorosilanes and their vapours decompose in presence of moisture to form silicon dioxide and acidic hydrogen chloride gas. They react vigorously with water and with alcohols or other compounds containing active hydrogen atoms. Therefore, silicon tetrachloride must be stored and transported under inert gas condition in closed containers excluding moisture and air. Protection from direct sunlight and heat is necessary.
The container must be flushed with inert gas and closed tightly after each time that material is taken out.
Silicon tetrachloride is classified as highly corrosive. Inhalation of the product must be avoided. When handling the product, skin and eyes must be protected by wearing impermeable gloves, eye protection and, if appropriate, a breathing mask. Should splashes nevertheless get onto the skin or into the eyes, the affected area must first be rinsed with plenty of water and, if contact with the eyes has occurred, an eye specialist should be consulted.

Product Details

Further Information

Storage:

Storage: P403+P233: Store in a well-ventilated place. Keep container tightly closed.

Packaging:

Silicon tetrachloride is filled in stainless steel containers of various sizes.
- Stainless steel drum with 25 kg content
- Stainless steel drum with 275 kg content
- Tank container with 1.050 kg content
- ISO-container with 20 MT content
- Customized package and filling weight can be provided upon consulation.

Shelf life:

min. 12 months from date of manufacture