Silicon tetrafluoride (SiF4) is a chemical compound that finds application in various industries, particularly in semiconductor manufacturing and inorganic chemistry. Here are some key characteristics of silicon tetrafluoride:
Chemical Properties:
Formula: SiF4
Molecular Weight: Approximately 88.10 g/mol
CAS Number: 7783-61-1
Boiling Point: -87 °C
Melting Point: -90.2 °C
Physical Properties:
Silicon tetrafluoride is a colorless gas at room temperature and pressure.
It has a characteristic pungent odor.
The molecule is tetrahedral in structure, similar to methane (CH4).
Reactivity:
It is a very reactive compound, especially with water, forming hydrofluoric acid (HF) and silica (SiO2).
SiF4 is a strong fluorinating agent and can react with most metals to form metal fluorides.
Uses:
Semiconductor Industry: Used in plasma etching processes to remove silicon dioxide (SiO2) layers in microelectronics.
Inorganic Chemistry: As a reagent in the synthesis of other silicon compounds.
Analytical Chemistry: In the determination of silicon and other elements in samples.
Research: In studies involving organofluorine chemistry and silicon chemistry.
Handling and Safety:
Silicon tetrafluoride is highly toxic and corrosive, posing significant health risks including respiratory irritation and damage to the eyes and skin.
It should be handled under inert conditions and with appropriate personal protective equipment (PPE), including gloves, goggles, and a respirator.
Storage should be in a cool, dry area away from incompatible materials.
If you're interested in obtaining silicon tetrafluoride for legitimate industrial or research purposes, you should contact these suppliers directly and ensure that all necessary safety and legal requirements are met before proceeding with any transactions.