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silane (SiH4)

A colorless gas, insoluble in water, which is stable in the absence of air but spontaneously flammable even at low temperatures. Silane itself is the simplest member of the silane family, a series of silicon hydrides, analogous to the alkanes.

density relative to water 0.68 (liquid)
melting point -185°C
boiling point -112°C

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