Which of the following is true about silane (silicon tetrahydride)?

Silane, or silicon tetrahydride, is indeed classified as pyrophoric, which means it can ignite spontaneously in air without an external ignition source. This characteristic poses significant safety hazards when handling the substance, as it necessitates specific storage and usage protocols to prevent accidental ignition and fire.

Understanding that silane ignites easily upon exposure to oxygen highlights the importance of proper handling procedures in environments where it is used. Proper equipment, inert atmosphere conditions, and stringent safety measures are essential to minimize risks associated with pyrophoric materials.

In contrast, the other statements reflect misconceptions about silane. It does not mix safely with water; in fact, it can react violently with moisture. Silane is also not considered a stable compound under ambient conditions, and while it can pose health risks, it is not classified as non-toxic in all situations. Knowledge of silane's pyrophoric nature is crucial for safety in industrial and laboratory settings.