BBr3
Boron tribromide · Boron bromide
Boron tribromide is a stable, insulating inorganic compound primarily used as a strong Lewis acid in chemical synthesis and semiconductor manufacturing.

About Boron tribromide
Boron tribromide is a significant inorganic compound characterized by its insulating electronic nature and high thermodynamic stability. It serves as a vital reagent in organic synthesis, particularly valued for its potent Lewis acidity in various catalytic and transformative processes.
Due to its unique chemical properties, this compound is widely utilized in the semiconductor industry and as a precursor for specialized chemical manufacturing. Its stability on the convex hull underscores its reliability as a foundational material in industrial chemical applications.
Key Properties
Cross-validated computational properties for Boron tribromide, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Applications
Where Boron tribromide is used.
Frequently Asked Questions
Common questions about Boron tribromide, answered from cross-validated data.
What is BBr3?
Boron tribromide is a stable, insulating inorganic compound primarily used as a strong Lewis acid in chemical synthesis and semiconductor manufacturing.
What is BBr3 used for?
What is the band gap of BBr3?
Is BBr3 a metal, semiconductor, or insulator?
Is BBr3 thermodynamically stable?
How many polymorphs of BBr3 are known?
What elements does BBr3 contain?
Where does the data for BBr3 come from?
How It Compares
As a prominent member of the boron trihalide family, boron tribromide functions as a powerful Lewis acid, often demonstrating higher reactivity in specific cleavage reactions compared to its lighter halogenated counterparts.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze BBr3 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →