Silane | Silanes | Chloro Silanes

SiSiB® PC5030

Synonym: Silicon chloride hydride

Countertype of Degussa TCS, DowCorning Z-1228 EG, Q1-2333

Chemical Structure


SiSiB® Chlorosilanes are a group of reactive, chlorine-containing silicon compounds, used in many chemical processes. Each such compound has at least one silicon-chlorine bond.

Typical Physical Properties

Chemical Name: Trichlorosilane
CAS No.: 10025-78-2
EINECS No.: 233-042-5
Empirical Formula: HSiCl3
Molecular Weight: 135.45
Boiling Point: 31.9°C [760mmHg]
Flash Point: -13°C
Color and Appearance: Clear liquid with acrid odor of hydrogen chloride
Density [25°C]: 1.342
Refractive Index [25°C]: 1.402
Purity: 99% by GC


All chlorosilanes react with water to produce hydrogen chloride. The remaining hydroxyl group bonds to the silicon, initially forming a silol group (analogous to alcohol). In general, this will eventually bond to a solid oxide surface or react with another chlorosilane or silol molecule. In the latter cases, the oxygen atom forms a link between two silicon atoms, analogous to the ether linkage in organic chemicals, and identical to the bonding in silicon dioxide.

SiSiB® PC5030 is an intermediate in the production of ultrapure silicon in the semiconductor industry. Chlorosilanes obtained from crude silicon are purified by fractional distillation techniques and then reduced with hydrogen to give silicon of 99.999999999 % (11 nines) purity.


Standard packing is 210L steel drum or 1000L IBC container, for more details, please visit Packing Centre. Custom packing is available.

Technical Library

Download Technical Data Sheet Safety Data Sheet


Download 2010 SiSiB® SILANE Catalogue