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Trichlorosilane

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Identification
Molecular formula
HSiCl3
CAS number
10025-78-2
IUPAC name
trichlorosilane
State
State

At room temperature, trichlorosilane is a liquid. It is highly reactive with water and moisture, releasing hydrogen chloride gas upon contact.

Melting point (Celsius)
-127.40
Melting point (Kelvin)
145.75
Boiling point (Celsius)
31.80
Boiling point (Kelvin)
304.95
General information
Molecular weight
135.46g/mol
Molar mass
135.4570g/mol
Density
1.3384g/cm3
Appearence

Trichlorosilane is a colorless liquid that fumes in air. It has a sharp, pungent odor and is corrosive. Its appearance may seem similar to water, but due to its reactivity with moisture, it typically appears to fume, especially in humid air, because it reacts with moisture to produce hydrogen chloride gas.

Comment on solubility

Solubility of Trichlorosilane

Trichlorosilane (SiCl3H) is an intriguing compound concerning its solubility characteristics. Below are key points regarding its solubility:

  • Solvent Compatibility: Trichlorosilane exhibits solubility in organic solvents such as ether and benzene. This behavior is primarily due to its polar nature, which allows it to interact effectively with other polar solvents.
  • Limited Water Solubility: While trichlorosilane is primarily non-polar, it has only a slight solubility in water. This is a classic example of the “like dissolves like” principle, showcasing that the non-polar components of the molecule do not favor interactions with polar water molecules.
  • Reactivity: Moreover, when in contact with water, trichlorosilane can hydrolyze, forming silicic acid and hydrochloric acid. This reaction signifies that while trichlorosilane is not fully soluble in water, it can interact with it under certain conditions, leading to the formation of new compounds.

In summary, trichlorosilane's solubility is defined not solely by its chemical nature but also by how it interacts with various solvents. Its solubility highlights the complex balance between molecular interactions in diverse environments.

Interesting facts

Interesting Facts About Trichlorosilane

Trichlorosilane, also known as silicon trichloride, is a fascinating compound widely used in the electronic and materials science industries. Here are some intriguing aspects of this chemical:

  • Precursor to Silicon: Trichlorosilane is a vital precursor in the production of high-purity silicon for the manufacturing of semiconductors and solar cells. The compound can be decomposed thermally to yield elemental silicon, making it integral in the electronics sector.
  • Silicone Production: It plays a crucial role in synthesizing silanes and silicones. Its ability to react with alcohols leads to the formation of siloxanes, which are essential for producing various silicone products, including elastomers and sealants.
  • Industrial Applications: Besides electronics and silicone manufacturing, trichlorosilane is utilized for surface modifications in various materials, enhancing attributes like hydrophobicity and adhesion.
  • Highly Reactive: As a chemical, trichlorosilane is highly reactive with moisture, which can produce hydrochloric acid. Thus, it needs to be handled in dry conditions to prevent hazardous reactions.
  • Storage Considerations: It is typically stored in specialized containers made of materials resistant to corrosion, such as certain metals and glass, to avoid degradation and maintain its stability.

In summary, trichlorosilane is not only pivotal in modern technology but also exemplifies the intricate relationships between chemical properties and industrial applications.

Synonyms
DTXSID4029301
DTXCID909301
TRICHLOROSILANE (HSICL3)
TRICHLOROSILANE (SIHCL3)
SILICON CHLORIDE HYDRIDE (SICL3H)
233-042-5
419-930-7
10025-78-2
ccris 9413
EC 233-042-5
EINECS 233-042-5
hsdb 890
QZY2645L6V
silane a-19
Silane, trichloro-
silici-chloroforme
siliciumchloroform
silicon chloride hydride (sihcl3)
trichloorsilaan
TRICHLOROMONOSILANE
Trichlorosilane
trichlorsilan
triclorosilano
UNII-QZY2645L6V
Cl3SiH
HSiCl3
SCHEMBL6892
InChI=1/Cl3HSi/c1-4(2)3/h4
NS00047845
Q419041