Trisilane, with the chemical formula Si3H8, has the CAS number 7783-26-8. This compound is a silane, which is a group of organosilicon compounds that contain silicon-hydrogen bonds. Here are some key characteristics of trisilane:
Physical Properties:
Trisilane is a colorless gas at room temperature and pressure.
It has a strong odor.
Its melting point is -195 °C, and its boiling point is -111.9 °C.
The density of trisilane is approximately 1.39 g/L at 0 °C and 1 bar.
Chemical Properties:
Trisilane is highly reactive, especially with oxygen and moisture.
Upon contact with air, it can spontaneously ignite due to its high reactivity, leading to the formation of silicon dioxide (SiO2) and water.
It can also react with halogens, metals, and other chemicals.
Uses:
Trisilane is used in semiconductor manufacturing for the deposition of silicon films.
It serves as a precursor in chemical vapor deposition (CVD) processes for creating thin films of silicon on wafers.
It can also be used in the synthesis of other silicon-containing compounds.
Safety Concerns:
Due to its flammability and reactivity, trisilane poses significant fire and explosion hazards.
It can be harmful if inhaled or if it comes into contact with skin or eyes.
Appropriate personal protective equipment (PPE) must be worn when handling trisilane, and it should be stored under inert atmosphere conditions away from sources of ignition and incompatible materials.
As for suppliers of trisilane, these may include specialized chemical manufacturers and distributors that cater to industries such as semiconductors and electronics.
Always consult the material safety data sheet (MSDS) before handling trisilane and ensure that all safety measures are in place to prevent accidents.