7783-26-8
Trisilane
CAS: 7783-26-8
Molecular Formula: H8Si3
7783-26-8 - Names and Identifiers
| Name | Trisilane |
| Synonyms | Trisilane 7783-26-8 Trisilicane Silicopropane Trisilicopropane Trisilicon octahydride λ2-silanylidenesilylidenesilicon |
| CAS | 7783-26-8 |
7783-26-8 - Physico-chemical Properties
| Molecular Formula | H8Si3 |
| Molar Mass | 92.32 |
| Density | d0 0.743 |
| Melting Point | -117.4° |
| Boling Point | bp 52.9° |
| Water Solubility | decomposed by H2O [MER06] |
| Appearance | flammable liquid |
| Specific Gravity | 0.7430 |
| Sensitive | 10: reacts extremely rapidly with moisture and oxygen - may be pyrophoric - sealed system required |
| Refractive Index | 1.4978 |
7783-26-8 - References
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Introduction | Disilane is a silane hydrocarbon with three silicon atoms in a molecular structure. Its chemical formula is Si3H8, which is a colorless and spontaneous combustion liquid at room temperature and pressure. It was discovered by Carol Bersky and Alfred Stock (English: Alfred Stock) in 1916. It is a silicon analog of propane, but because it does not contain carbon, so it's not an organic compound. |
| use | propilane is a flammable toxic liquid at normal temperature and pressure, and its main use is semiconductor silicon film manufacturing and amorphous silicon manufacturing. |
| Preparation method | Disilane is a trace product of the reaction of SiH2 and HCl. This reaction needs to be completed by infrared laser. The laser should be set on a stainless steel cylindrical battery perpendicular to the laser of the mass spectrometer. Propsilane can also be prepared by using the Schlesinger method. This reaction is to react lithium aluminum hydride with octachloropropilane in n-butyl ether. In addition, Bowery, Pernell and Walsh proved in the 1960s that propilane will thermally decompose into monosilane and disilane at high temperatures. |
Last Update：2024-04-09 15:17:28
