| Formula | CAS No. | Content |
|---|---|---|
| NH4HF2 | 1341-49-7 | 98% 98.5%min |
It is a colorless crystal in the shape of a rhombus, granular or flaky, soluble in water, but poorly soluble in alcohol. Its stable liquor is acidity in the dry state. It decomposes in hot water and has poison.
It is used as a chemical reagent and glass etchant. aseptic and disinfectant, screening agent, metallurgy flux in fermentation industry. It is also used for ceramics and magnesium alloys.
Store in a dry and clean warehouse. Strictly prohibit sunshine and rain, avoid damage.
25Kg net, sealed container, P.P. Woven bags with double PE interior.
Why does delivery of Ammonium Bifluoride take several months?
Ammonium Bifluoride is classified as a dual-use item under China's export control regulations, which means every shipment requires an export licence issued by China's Ministry of Commerce (MOFCOM) before it can leave the country. The approval process involves end-user and end-use verification, the collection of required original documents, and government review. The export license application process typically takes around two months, although the actual timeline may vary depending on the product, documentation, and approval process. After approval, shipment arrangements and transportation time are also required.
What is the main application of Ammonium Bifluoride?
The industry with the largest use of ammonium bifluoride is: glass processing (including photovoltaic glass) and electronic semiconductors (including silicon wafers/wafer cleaning and etching). The combined ratio of these two exceeds 65% to 70%; Among them, traditional glass engraving accounts for about 42%, which is the largest sub-segment.
In the glass processing industry, what are the specific applications of ammonium bifluoride?
Frosted and ground glass;
Glass etching and art engraving;
The optical glass and lenses have suffered slight etching.
Remove burrs and trim glass edges;
Perform anti-reflective and anti-reflective coating treatment on photovoltaic glasses;
Clean, descale and remove oxidation from the glass.
What is the difference between industrial grade/electroplating grade/electronic grade?
Industrial grade: Cheap, with high impurities, only used for frosted glass and common acid washing.
Electroplating grade: Strictly controlled impurities, ensuring no tarnishing or pore formation in the coating.
Electronic grade: ultra-high purity metal ions at ppb level, used for silicon wafers, semiconductors and photovoltaics.
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