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What is the function of ammonium hydrogen fluoride
info：www.crimea-realty.net | Release time：2025-12-11
Ammonium hydrogen fluoride (NH ? HF ?) is a white crystal, also known as acid ammonium fluoride. Due to its mild release of hydrogen fluoride (HF) and strong acidic and fluorinating properties, it is a key fluoride chemical in industry.
Its core role mainly focuses on the following five areas:
1、 Glass Industry: Etching and Finishing Processes
As a glass etchant (often mixed with hydrofluoric acid), it is one of its better uses.
Principle: Corrosion of silicon dioxide (SiO ?) in glass to achieve controllable patterns, extinction, or frosted effects.
Application:
Craft glass: carving, engraving, and sanding of glassware and crafts.
Optical glass: precision etching and cleaning of optical lenses, prisms, and fibers.
Photovoltaic/display glass: Etching TCO conductive film to prepare anti reflection layer, improving the photoelectric performance of solar panels and LCD panels.
2、 Electronic Semiconductors: Cleaning and Etching Processes
Electronic grade ammonium hydrogen fluoride is a core wet chemical used in semiconductor manufacturing.
Silicon wafer processing: Selective removal of oxide layer (SiO ?), contaminated particles, and photoresist residue on the surface of silicon wafers, which is an essential cleaning agent for the pre fabrication process of wafer manufacturing.
PCB manufacturing: used for acid etching of printed circuit boards (PCBs) to create circuit graphics.
Precision cleaning: Clean fiber optic connectors and electronic components to ensure high surface cleanliness.
3、 Metal surface treatment: rust removal, film formation, and brightening
Aluminum/aluminum alloy treatment: Remove the oxide film on the surface of aluminum profiles, while forming a dense fluorine conversion film, significantly improving corrosion resistance and spray adhesion.
Stainless steel/titanium alloy treatment: acid pickling and passivation to remove oxide scale, rust, and scale, used for precision treatment of aviation and automotive components.
Electroplating additives: added to chrome plating and zinc plating electrolytes to activate the metal surface, making the coating more uniform and firm.
4、 Petrochemical and synthesis: catalysts and fluorine sources
Fluorination reagent: As a mild fluorine source, it is used in organic synthesis to prepare fluorine-containing intermediates in pharmaceuticals, pesticides, and dyes.
Catalyst: Used as a catalyst component for alkylation and isomerization reactions in petroleum refining.
Synthetic raw materials: Production of cryolite (electrolytic aluminum), potassium fluoride, aluminum fluoride and other fluorides.
Oilfield acidification: Prepare "soil acid" to acidify sandstone formations, dredge reservoir pores, and improve oil recovery rate.
5、 Other industrial auxiliary functions
Boiler cleaning: Remove silicate scale from boilers and pipelines.
Ceramic industry: As a flux, it reduces the sintering temperature of ceramics, improves density and glossiness.
Analytical reagents: Masking agents used in chemical analysis.
Rare earth smelting: efficient leaching and extraction of rare metals such as rare earths, beryllium, cobalt, etc
Its core role mainly focuses on the following five areas:
1、 Glass Industry: Etching and Finishing Processes
As a glass etchant (often mixed with hydrofluoric acid), it is one of its better uses.
Principle: Corrosion of silicon dioxide (SiO ?) in glass to achieve controllable patterns, extinction, or frosted effects.
Application:
Craft glass: carving, engraving, and sanding of glassware and crafts.
Optical glass: precision etching and cleaning of optical lenses, prisms, and fibers.
Photovoltaic/display glass: Etching TCO conductive film to prepare anti reflection layer, improving the photoelectric performance of solar panels and LCD panels.
2、 Electronic Semiconductors: Cleaning and Etching Processes
Electronic grade ammonium hydrogen fluoride is a core wet chemical used in semiconductor manufacturing.
Silicon wafer processing: Selective removal of oxide layer (SiO ?), contaminated particles, and photoresist residue on the surface of silicon wafers, which is an essential cleaning agent for the pre fabrication process of wafer manufacturing.
PCB manufacturing: used for acid etching of printed circuit boards (PCBs) to create circuit graphics.
Precision cleaning: Clean fiber optic connectors and electronic components to ensure high surface cleanliness.
3、 Metal surface treatment: rust removal, film formation, and brightening
Aluminum/aluminum alloy treatment: Remove the oxide film on the surface of aluminum profiles, while forming a dense fluorine conversion film, significantly improving corrosion resistance and spray adhesion.
Stainless steel/titanium alloy treatment: acid pickling and passivation to remove oxide scale, rust, and scale, used for precision treatment of aviation and automotive components.
Electroplating additives: added to chrome plating and zinc plating electrolytes to activate the metal surface, making the coating more uniform and firm.
4、 Petrochemical and synthesis: catalysts and fluorine sources
Fluorination reagent: As a mild fluorine source, it is used in organic synthesis to prepare fluorine-containing intermediates in pharmaceuticals, pesticides, and dyes.
Catalyst: Used as a catalyst component for alkylation and isomerization reactions in petroleum refining.
Synthetic raw materials: Production of cryolite (electrolytic aluminum), potassium fluoride, aluminum fluoride and other fluorides.
Oilfield acidification: Prepare "soil acid" to acidify sandstone formations, dredge reservoir pores, and improve oil recovery rate.
5、 Other industrial auxiliary functions
Boiler cleaning: Remove silicate scale from boilers and pipelines.
Ceramic industry: As a flux, it reduces the sintering temperature of ceramics, improves density and glossiness.
Analytical reagents: Masking agents used in chemical analysis.
Rare earth smelting: efficient leaching and extraction of rare metals such as rare earths, beryllium, cobalt, etc
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