boronoxygen

Boronoxygen is an informal term used to describe chemical systems and compounds that involve boron and oxygen. It does not denote a single, well-defined compound but serves as an umbrella for boron–oxygen species such as boron monoxide (BO) and boron oxide (B2O3), as well as boron-rich oxides like boron suboxide (B6O). Because it is not a formal name, usage varies across sources and contexts.

In terms of forms, BO is a diatomic molecule observed in high-temperature gas-phase reactions and during boron combustion, where it can appear as a transient radical. B2O3 is a covalent oxide that forms a network structure and exists as a white solid; it is a common boron-containing glass former and ceramic additive. B6O is a boron-rich oxide noted for hardness and refractoriness, and it has attracted interest as a potential superhard material.

Synthesis generally follows established routes for the individual species: B2O3 arises from burning boron or boron-containing materials in oxygen; BO can be produced in situ in high-temperature oxidation environments; B6O requires high pressures and temperatures to drive the boron-rich oxide phase from boron and boron oxide precursors.

Applications reflect the properties of the specific species. B2O3 is used in specialty glasses, ceramics, and frits; B6O has potential as an abrasive or coating material due to its hardness; BO is primarily of interest in fundamental studies of boron–oxygen chemistry and gas-phase kinetics. Safety considerations are typical for boron oxides, with inhalation of powders posing respiratory risks and appropriate handling advised.