HBr
Hydrogen bromide · Hydrobromic acid
Hydrogen bromide is a stable, insulating diatomic compound widely used as a critical reagent in industrial and laboratory chemical synthesis.
About Hydrogen bromide
Hydrogen bromide is a simple diatomic molecule that exists as a thermodynamically stable phase. Its electronic structure is characterized by a wide band gap, classifying it as an insulating material in its solid state. Due to its high reactivity and solubility, it serves as a foundational chemical building block.
This compound is widely utilized in synthetic chemistry, particularly for the production of organobromine derivatives. Its stability on the convex hull underscores its reliability as a precursor in various industrial processes, ranging from flame retardants to pharmaceutical manufacturing.
Key Properties
Cross-validated computational properties for Hydrogen bromide, 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 Hydrogen bromide is used.
Patent Landscape
6 patents reference HBr or close compositional variants.
| Patent | Title | Assignee | Granted |
|---|---|---|---|
| 6890508 | Preparation of largely HBr-free HCI gas and largely HBr-free aqueous HCI solution | — | — |
| 4203813 | Method for producing HBr | — | — |
| 6008140 | Copper etch using HCI and HBr chemistry | — | — |
| 4830846 | Separation process for anhydrous HCl and HBr by thermal cleavage | — | — |
| 5986149 | Method for recovering alkanols from aqueous HBr-solutions | — | — |
| 4218301 | Apparatus for producing HBr utilizing a consumable bromine electrode | — | — |
Frequently Asked Questions
Common questions about Hydrogen bromide, answered from cross-validated data.
What is HBr?
Hydrogen bromide is a stable, insulating diatomic compound widely used as a critical reagent in industrial and laboratory chemical synthesis.
What is HBr used for?
What is the band gap of HBr?
Is HBr a metal, semiconductor, or insulator?
Is HBr thermodynamically stable?
How many polymorphs of HBr are known?
What elements does HBr contain?
Where does the data for HBr come from?
How It Compares
As a fundamental hydrogen halide, hydrogen bromide occupies a central role in chemical synthesis. Unlike more complex inorganic salts, its simplicity allows for high-purity applications in industrial catalysis and organic functionalization.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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