Semiconductor Cleaning HF
Dilute 0.5% HF for native oxide removal in wafer fabrication. Remains hydrogen fluoride under HTS 2811.11.00.00 due to chemical definition in Chapter 28. Shipped in high-purity Teflon bottles.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mixed with HNO3 as SC1 clean
Semiconductor cleaning mixtures classify as prepared chemical mixtures.
If ultra-trace for lab retail kits
Lab-scale prepared solutions fall under diagnostic or lab reagents.
Not sure which classification is right?
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Import Tips & Compliance
• Particle count specs mandatory; cleanroom shipping protocols
• Low concentration risks mixture classification
Related Products under HTS 2811.11.00.00
Anhydrous Hydrogen Fluoride
Pure anhydrous hydrogen fluoride (HF) is a colorless, corrosive gas or liquid used primarily in industrial processes like fluorochemical production. It falls under HTS 2811.11.00.00 as it is the specific inorganic acid hydrogen fluoride, chemically defined per Chapter 28 notes. This classification applies to the pure compound without water.
48% Hydrofluoric Acid Solution
A standard industrial grade of hydrofluoric acid at 48% concentration in water, used for etching glass and semiconductors. Classified under HTS 2811.11.00.00 as hydrogen fluoride, the primary compound, per Chapter 28 definitions for chemically defined inorganic acids. It is imported in plastic carboys for safety.
70% Hydrogen Fluoride Industrial Grade
High-concentration 70% HF solution for heavy-duty applications like aluminum etching in manufacturing. It is explicitly hydrogen fluoride under HTS 2811.11.00.00, meeting Chapter 28 note for inorganic acids of nonmetals. Supplied in bulk tankers with strict safety protocols.
Electronic Grade Hydrofluoric Acid (HF)
Ultra-pure hydrofluoric acid for semiconductor wafer cleaning, with impurities below ppb levels. Falls under HTS 2811.11.00.00 as chemically defined hydrogen fluoride for inorganic acid category in Chapter 28. Packaged in cleanroom-compatible fluoropolymer bottles.
Buffered Hydrofluoric Acid (BHF)
Buffered HF solution typically 6:1 HF:NH4F for silicon dioxide etching in microelectronics. Primarily hydrogen fluoride, thus HTS 2811.11.00.00 per Chapter 28 inorganic acids note, despite buffering. Imported for precision semiconductor processing.
Pharma Grade Hydrofluoric Acid
High-purity HF meeting USP standards for pharmaceutical fluoride production and synthesis. Classified as hydrogen fluoride under HTS 2811.11.00.00, chemically defined inorganic acid excluding organo-inorganics per Chapter notes. Supplied in sterile, low-metal containers.