Silane (SiH4)
Introduction of silane (Sih4)
Silane (SiH4) is a chemical compound which constitutes the silica analogue of methane (CH4). It is part of the family of hydrides composed of silicon and hydrogen and presents in the form of a colourless pyrophoric gas at ambient temperature with a particularly unpleasant and repulsive smell. Silane has also given its name to silanes, chemical compounds and silicon analogues of alkanes.
Professional use of silane (SiH4)
Silane, or silicon tetrahydride, is a chemical compound used almost exclusively to produce pure silicon. Pure silicon has several applications, notably in the semi-conductors industry. Silane has also long been used in the design of photovoltaic solar panels or the production of amorphous silicon for photocopier drums.
Risks of silane
Silane is an extremely flammable and pyrophoric has (gas leaks can spontaneously ignite at ambient temperature) responsible for numerous professional accidents. It is also toxic when inhaled as it is able to replace oxygen in poorly ventilated spaces.
Effects on the body
- Irritation of the respiratory tracts, headaches, nausea, cough, breathing difficulties leading to suffocation in case of significant and prolonged exposure
- Severe ocular lesions in case of contact with eyes
- Significant irritation and frostbite in case of contact with skin
