Ammonium Bifluoride, technically known as Ammonium Hydrogen Fluoride, is a corrosive inorganic chemical widely valued for its ability to dissolve silica. It serves as the primary active agent in glass etching and frosting, allowing for precise surface modification and texturing without the extreme volatility of hydrofluoric acid. This Ammonium Acid Fluoride is also extensively utilized in the aluminum anodizing industry and as a cleaning agent for silicate bricks and boiler tubes. We provide competitive factory pricing and ensure customized specifications regarding purity (98% min) and particle size. Each batch is supported by full documentation including MSDS, TDS, COA, and is available for bulk supply to global industrial partners.
Ammonium Bifluoride CAS 1341-49-7
- CAS: 1341-49-7
- Synonyms: Ammonium bifluoride
- Einecs: 215-676-4
- Molecular Formula: NH4HF2
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packaging
Product Description
Ammonium hydrogen fluoride (English name: Ammonium Hydrogen Fluoride) is an inorganic compound.The chemical formula is NH₄HF₂, and the molecular weight is about 57.04。It is usually white or colorless transparent orthogonal crystals, flaky, and slightly sour. The relative density is 1.50, the melting point is 125.6°C, the boiling point is 240°C, and the refractive index is 1.390. easy to deliquescence and agglomeration in humid air; It is easily soluble in cold water and slightly soluble in ethanol; decomposed in hot water, the aqueous solution is strongly acidic; It can sublimate at higher temperatures。Ammonium bifluoride can react with alkaline substances to form ammonia and fluoride, react with iron to form colorless and soluble ferric ammonium fluoride, and form compound salts with many metal oxides or carbonates at higher temperatures.
chemical formula：NH4HF2
molecular weight：57.043
CAS login number：1341-49-7
EINECS login number：215-676-4
Melting point：124.6 ℃
Boiling point：240 ℃
water solubility：Soluble
Density：1.52 g/cm³
Appearance：White or colorless transparent or thorhombic crystal system
Security description：S22； S26； S36/37/39；S45
Danger symbol：C
Toxicity and protection
Ammonium bifluoride is toxic and can lead to renal and bone sclerosis and lung fibroid degeneration. Ingestion or inhalation can lead to inflammatory diseases of the eyes, upper respiratory tract, gastrointestinal tract and skin, including anorexia, nausea, vomiting, constipation, weight loss, cough, joint stiffness and other symptoms。Ammonium bifluoride is also corrosive, can corrode glass and siliceous products, and has an irritating effect on the skin; If it comes into contact with the skin, it should be washed off immediately with soapy water, and if it invades the eyes, rinse with warm water immediately, and if it is serious, seek medical attention in time.
Applications:
Mainly used as:Carved glassetch、preservative、disinfectant、Beryllium oxideMetal beryllium solvents,Analytical reagentsand silicon steel platesSurface treatment agent, is also used to make ceramics and Aluminum-magnesium alloy The oxidant and Boiler feed water system Cleaning agent and organic synthesis of steam generation system Fluoridator、Plating solutionextract rare element reagents.
FAQ - Technical & Supply Chain
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Q:
Is Ammonium Hydrogen Fluoride the same substance as Ammonium Bifluoride?
A: Yes. Both terms refer to the inorganic compound identified by CAS 1341-49-7. "Bifluoride" is the traditional trade name, while "Hydrogen Fluoride" describes its chemical structure more explicitly. -
Q:
Is this product suitable for use in metal surface treatment?
A: Yes, it is typically applied in metal surface treatment processes, particularly for pickling and cleaning aluminum and stainless steel to remove oxide layers prior to coating or anodizing.
Documents
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Quotation
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Storage & Handling
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Supply Support
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.
