KHF2
potassium bifluoride · potassium acid fluoride
Potassium bifluoride is a stable, insulating salt primarily used as a source of fluoride for industrial fluxing, glass etching, and chemical manufacturing.
About potassium bifluoride
Potassium bifluoride is a robust, thermodynamically stable inorganic compound characterized by its insulating electronic properties. It serves as a vital source of fluoride ions in various chemical processes, maintaining structural integrity across diverse environmental conditions.
Due to its chemical nature, this compound is widely employed in metallurgical applications, particularly as a flux for soldering and brazing. Its ability to provide a controlled release of fluoride makes it an essential reagent in the production of specialized glass and in industrial surface treatment processes.
Key Properties
Cross-validated computational properties for potassium bifluoride, 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 potassium bifluoride is used.
Frequently Asked Questions
Common questions about potassium bifluoride, answered from cross-validated data.
What is KHF2?
Potassium bifluoride is a stable, insulating salt primarily used as a source of fluoride for industrial fluxing, glass etching, and chemical manufacturing.
What is KHF2 used for?
What is the band gap of KHF2?
Is KHF2 a metal, semiconductor, or insulator?
Is KHF2 thermodynamically stable?
How many polymorphs of KHF2 are known?
What elements does KHF2 contain?
Where does the data for KHF2 come from?
How It Compares
As a standalone member of its chemical class, potassium bifluoride is recognized for its exceptional thermodynamic stability, which distinguishes it as a reliable and well-characterized material compared to less stable or more reactive fluoride-based alternatives.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze KHF2 in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →