Potassium Fluoride
Potassium Fluoride (KF, CAS 7789-23-3), min. 99.0%, supplied wholesale by Zyntex for professional use. Fluoride source for Halex fluorination, aluminum brazing fluxes, glass etching and catalysts. CoA and SDS with every lot.
Description
Potassium Fluoride Product Overview
Potassium fluoride (KF) is a white crystalline powder that dissolves very easily in water and absorbs moisture strongly from the air. Spray-dried grades with high surface area are preferred for chemical reactions.
Chemists use it as the classic fluoride source in the Halex reaction, which replaces chlorine with fluorine on activated aromatic rings. Producers of fluorinated pharmaceutical and agrochemical intermediates, such as derivatives related to Fluorobenzene, rely on this process. In metal joining, potassium fluoroaluminate fluxes based on KF are used for brazing aluminum heat exchangers.
Other uses include glass etching, insecticides in some markets and catalysts such as KF on alumina. Related fluoride products include Hexafluorozirconic acid and Zirconium fluoride. Contact with acids releases highly toxic hydrogen fluoride, which requires strict handling controls.
Key Applications of Potassium Fluoride
Main application areas:
🧪 Halex Fluorination
Fluoride source for aromatic fluorination.
🔧 Aluminum Brazing
Component of potassium fluoroaluminate fluxes.
🔬 Glass Etching
Etching and frosting of glass.
⚗️ Catalysts
Base catalyst on alumina and other supports.
Potassium Fluoride Technical Specifications
| Parameter | Standard Value |
|---|---|
| Product Name | Potassium fluoride |
| CAS Number | 7789-23-3 |
| EC Number | 232-151-5 |
| Molecular Formula / Weight | KF / 58.10 g/mol |
| Assay / Purity | Min 99.0% |
| Appearance | White crystalline powder |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Toxic if swallowed, in contact with skin or if inhaled. Contact with acids releases highly toxic hydrogen fluoride. For professional use only. Wear chemical-resistant gloves, goggles and respiratory protection, and keep calcium gluconate gel available as first aid for fluoride exposure. Store in tightly closed containers in a dry place, away from acids. Always consult the Safety Data Sheet (SDS) for full classification and handling instructions.
Frequently Asked Questions
Which grade is best for Halex reactions?
Spray-dried, the anhydrous grade with high surface area gives the best reactivity. Please mention the application when requesting a quote.
Why must potassium fluoride be kept away from acids?
Acids release hydrogen fluoride gas, which is highly toxic and corrosive. Store it separately from acids and handle it with suitable protection.
How can I get a price and documents?
Prices depend on quantity, packaging and destination. Contact us with your required volume to receive a quotation together with the CoA and SDS.
