Silane (Silicane) is an inorganic compound with chemical formula SiH 4. It is a colorless, pyrophoric gas with a sharp, repulsive, pungent smell, somewhat similar to that of acetic acid. [6] Silane is of practical interest as a precursor to elemental silicon.

An appealing demonstration that delights the eyes, ears, and stimulates (!) the nose involves the silicon analogue of the alkanes: the silanes. The creation and pyrophoric reaction of these compounds in air is an excellent way to explore a range of chemistry topics including redox and acid-base reactions, combustion, kinetics, and structure and ...

At normal temperature and pressure, silane is a colorless gas. It is a pyrophoric gas, which means that it undergoes spontaneous combustion in air. Above 788°F (420°C/693.15 K), silane breaks down into silicon and hydrogen. In electronics, it is often used as an active gas enabling silicon depositions and for solar panels manufacturing.

1995年4月1日 · Mixtures whose silane concentrations are higher than what is represented by dashed line are pyrophoric, and those whose concentrations are lower remain stable. The dotted line in the Fig. 1 indicates the approximate position of the lower flammability limit [5].

2021年1月1日 · Silane is pyrophoric gas that needs to be handled with the utmost care and advanced equipment for safety purposes. Inappropriately many users have suffered from various serious accidents with silane. Its applications are growing tremendously worldwide in many industries such as flat-panel display, semiconductor, special glass manufacturing, and ...

2004年6月17日 · The approach involved addressing three aspects of the problem: the prompt ignition behavior of silane; the reactivity characteristics of quiescent silane/air mixtures; and the rates of reaction of silane leaked into enclosures with and without explosion venting, in the presence of ventilation air flow.

Silane (7803-62-5) is a highly inflammable, pyrophoric, and reactive gas that constitutes a significant fire and explosion hazard. Its inhalation can cause respiratory tract irritation. Contact can severely irritate and burn the skin and eyes. High …

These small silanes float to the surface, where combustion follows the same initial pathway as that of methane, allowing for a meaningful comparison of activation energies to be made in association with bond enthalpy values. The longer, weaker, Si–H bonds will break more easily, leading to more frequent successful

Pyrophoric Silanes. Eugene Ngai; Eugene Ngai (Whitehouse Station) Silane has been used for many years as a silicon source gas and its use is continuing to grow. While it is pyrophoric, it can be released without immediate ignition and as a result has been involved in numerous fatal accidents. Since the late 1960’s it has been well studied.

Silane ignites spontaneously upon contact with air, without the need for an ignition source like a spark, hot surface, or open flame! The property is termed ‘pyrophoric’. This exothermic reaction produces silicon dioxide and water, releasing a significant amount of heat. Inhalation of silane can cause severe respiratory irritation.