硅烷和硅氧烷之间的差异| Compare the Difference Between Similar Terms

Thekey differencebetween silane and siloxane is thatsilane is a chemical compound while siloxane is a functional group in organosilicon.

Silane and siloxane aresilicone-containing compounds. Both these materials are important as sealers. Here, silane sealer tends to penetrate deep for below surface protection while siloxane sealer works on the surface for water repellency.

1.Overview and Key Difference
2.What is Silane
3.什么是硅氧烷
4.并排比较 - 表格形式的硅烷与硅氧烷
5.概括

What is Silane?

Silane is an inorganic compound having the chemical formula SiH₄. It is a group 14 hydride. Further, this substance occurs as a colourless gas having a repulsive odour. The odour is similar to the odour of醋酸. Its molar mass is 32.11 g/mol. Also, the most common commercial-scale route for the production of silane is the reaction ofhydrogen chloride与硅镁。

Figure 01: Structure of Silane Molecule

The shape of the silane molecule is tetrahedral, similar to methane molecule. Because of the great difference between the electronegativity values of silicone and hydrogen, it has an opposite polarity to that of methane. Due to this reversed polarity, silane can form complexes withtransition metals. Moreover, silane can undergo spontaneous combustion in air. That means; it doesn’t require any external ignition source. Furthermore, the dominant application of silane is as a precursor for the production of elemental silicon. This is important in semiconductor production. It is also useful as a sealer.

什么是硅氧烷？

Siloxane is a functional group having the Si-O-Si linkage. The functional group is present in organosilicon compounds. The siloxane compounds can be either straight-chain compounds or branched compounds. These linkages form the backbone of the silicone polymer, i.e. polydimethylsiloxane.

Figure 02: Siloxane Linkage

Furthermore, the major route of forming a siloxane linkage is by condensation of two silanols. We can produce silanol by hydrolysis of silyl chloride. This compound is also important in making silicon carbide upon ignition in an inert atmosphere. Moreover, siloxane polymers are useful as sealers for waterproofing surfaces.

What is the Difference Between Silane and Siloxane?

Silane is an inorganic compound having the chemical formula SiH₄尽管硅氧烷是一种官能团的硅-O-Si linkage. The key difference between silane and siloxane is that silane is a chemical compound while siloxane is a functional group in organosilicon. Further, the dominant application of Silane is using it as a precursor for the production of elemental silicon, while siloxane is important in making silicon carbide.

Below infographic shows more comparisons related to the difference between silane and siloxane.

概括– Silane vs Siloxane

Reference:

1. “Silane.” National Center for Biotechnology Information. PubChem Compound Database, U.S. National Library of Medicine,Available here.
2. Tilley, Sloane K., and Rebecca C. Fry. “Priority Environmental Contaminants.” Systems Biology in Toxicology and Environmental Health, 2015, pp. 117–169., doi:10.1016/b978-0-12-801564-3.00006-7.