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What is the use of anhydrous potassium fluoride
info：www.hongjiafu.net | Release time：2026-06-10
1、 Organic fluorine chemical industry (the core scenario of anhydrous potassium fluoride, with much higher anhydrous activity than dihydrate)
1. Nucleophilic fluorinating agent (halogen exchange)
As a mainstream fluorine substitution raw material, chlorine and bromine are replaced with fluorine to produce fluorinated aromatic hydrocarbons, fluorinated alkanes, and fluorinated heterocyclic intermediates; Supply of pharmaceuticals (antibiotics, anti-tumor drugs, cardiovascular drugs), pesticides (herbicides, insecticides), dyes, fluororesins, refrigerants.
2. Organic reaction catalysts
Catalytic aldol condensation, ester exchange, and alkylation reactions; Can remove HCl from halogenated alkanes/halogenated alkenes to generate alkenes and alkynes; Load type KF is used as a heterogeneous phase transfer catalyst to improve reaction yield.
3. Pesticide raw materials
Synthesize insecticides and rodenticides such as sodium fluoroacetate and fluoroacetamide.
2、 Metallurgy, Welding, and Metal Surface Treatment
1. Brazing/welding flux
Stainless steel, copper, aluminum, magnesium alloy flux components, high-temperature dissolution of metal surface oxide film, improving weld wetting and welding strength; Common formula materials for brazing copper and stainless steel pipelines.
2. Alloy melting, slag removal and refining
Aluminum, magnesium, and rare earth alloy fluxes are used to remove molten oxide inclusions, purify molten metal, and reduce casting porosity defects; Used in combination with calcium chloride and calcium bromide compound refining agents.
3. Metal pickling, passivation, and descaling
Cleaning of stainless steel, aluminum, and magnesium alloys to dissolve oxide scales and rust; Activate the substrate before electroplating to enhance the adhesion of the coating.
3、 Electroplating industry
Zinc plating, tin plating, cadmium plating, alloy plating electrolyte complexing agents, complexing metal ions to stabilize plating solutions; Make the coating uniform and dense, with stronger corrosion resistance; The tin plating system generates a stable system of potassium fluorostannate.
4、 Glass, ceramics, optical materials
1. Glass etching and carving
Corrosive glass production patterns, scales, and process glass; Optical glass, matte lens surface, polished treatment to enhance light transmittance.
2. Fusing aid and glaze modification
Reduce the melting temperature of glass and ceramics; Adding glaze to enhance the gloss, smoothness, and weathering resistance of the glaze surface; Fiber optic glass production additive.
5、 Electronics, new energy semiconductors
1. Etching agents for wafers and circuit boards
Micro etching and cleaning of metal impurities in silicon wafers and circuit boards using weak acid systems; Electronic grade high-purity KF is used in precision microelectronics processes.
2. Lithium battery raw materials
Synthesize electrolyte lithium salts such as lithium difluorosulfonylimide (LiFSI) to enhance battery cycling stability and low-temperature performance.
Preparation of optical fluoride salts
Preparation of optical coatings and crystal material precursors such as potassium fluorosilicate and potassium fluorotitanate.
6、 Preparation of inorganic fluoride masterbatch
Production of industrial fluoride salts such as potassium hydrogen fluoride (KHF ₂), potassium fluoroaluminate, fluorozirconate, fluorotitanate, etc; These downstream products are widely used in the soldering flux, aluminum smelting, ceramics, and anti-corrosion industries.
7、 Analytical Chemistry and Laboratory
Complex masking agent: used to mask interfering metal ions such as aluminum, iron, and titanium in titration analysis;
Special absorbent: absorb hydrogen fluoride gas and trace water in the absorption system;
Standard analytical reagents (AR/GR high-purity grade).
8、 Other light industry anti-corrosion measures
A small amount is used for wood anti-corrosion and industrial equipment silicon scale removal; The old standards were once used in small quantities for food preservation and are now strictly restricted for use in the food industry.
1. Nucleophilic fluorinating agent (halogen exchange)
As a mainstream fluorine substitution raw material, chlorine and bromine are replaced with fluorine to produce fluorinated aromatic hydrocarbons, fluorinated alkanes, and fluorinated heterocyclic intermediates; Supply of pharmaceuticals (antibiotics, anti-tumor drugs, cardiovascular drugs), pesticides (herbicides, insecticides), dyes, fluororesins, refrigerants.
2. Organic reaction catalysts
Catalytic aldol condensation, ester exchange, and alkylation reactions; Can remove HCl from halogenated alkanes/halogenated alkenes to generate alkenes and alkynes; Load type KF is used as a heterogeneous phase transfer catalyst to improve reaction yield.
3. Pesticide raw materials
Synthesize insecticides and rodenticides such as sodium fluoroacetate and fluoroacetamide.
2、 Metallurgy, Welding, and Metal Surface Treatment
1. Brazing/welding flux
Stainless steel, copper, aluminum, magnesium alloy flux components, high-temperature dissolution of metal surface oxide film, improving weld wetting and welding strength; Common formula materials for brazing copper and stainless steel pipelines.
2. Alloy melting, slag removal and refining
Aluminum, magnesium, and rare earth alloy fluxes are used to remove molten oxide inclusions, purify molten metal, and reduce casting porosity defects; Used in combination with calcium chloride and calcium bromide compound refining agents.
3. Metal pickling, passivation, and descaling
Cleaning of stainless steel, aluminum, and magnesium alloys to dissolve oxide scales and rust; Activate the substrate before electroplating to enhance the adhesion of the coating.
3、 Electroplating industry
Zinc plating, tin plating, cadmium plating, alloy plating electrolyte complexing agents, complexing metal ions to stabilize plating solutions; Make the coating uniform and dense, with stronger corrosion resistance; The tin plating system generates a stable system of potassium fluorostannate.
4、 Glass, ceramics, optical materials
1. Glass etching and carving
Corrosive glass production patterns, scales, and process glass; Optical glass, matte lens surface, polished treatment to enhance light transmittance.
2. Fusing aid and glaze modification
Reduce the melting temperature of glass and ceramics; Adding glaze to enhance the gloss, smoothness, and weathering resistance of the glaze surface; Fiber optic glass production additive.
5、 Electronics, new energy semiconductors
1. Etching agents for wafers and circuit boards
Micro etching and cleaning of metal impurities in silicon wafers and circuit boards using weak acid systems; Electronic grade high-purity KF is used in precision microelectronics processes.
2. Lithium battery raw materials
Synthesize electrolyte lithium salts such as lithium difluorosulfonylimide (LiFSI) to enhance battery cycling stability and low-temperature performance.
Preparation of optical fluoride salts
Preparation of optical coatings and crystal material precursors such as potassium fluorosilicate and potassium fluorotitanate.
6、 Preparation of inorganic fluoride masterbatch
Production of industrial fluoride salts such as potassium hydrogen fluoride (KHF ₂), potassium fluoroaluminate, fluorozirconate, fluorotitanate, etc; These downstream products are widely used in the soldering flux, aluminum smelting, ceramics, and anti-corrosion industries.
7、 Analytical Chemistry and Laboratory
Complex masking agent: used to mask interfering metal ions such as aluminum, iron, and titanium in titration analysis;
Special absorbent: absorb hydrogen fluoride gas and trace water in the absorption system;
Standard analytical reagents (AR/GR high-purity grade).
8、 Other light industry anti-corrosion measures
A small amount is used for wood anti-corrosion and industrial equipment silicon scale removal; The old standards were once used in small quantities for food preservation and are now strictly restricted for use in the food industry.
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