Hydrogen fluoride (hydrofluoric acid)
Other inorganic acids and other inorganic oxygen compounds of non-metals. > Other inorganic acids: > Hydrogen fluoride (hydrofluoric acid) > Hydrogen fluoride (hydrofluoric acid)
Duty Rate (from China)
Products classified under Tariff item 2811.11.00.00
48% Hydrofluoric Acid Solution
A standard industrial grade of hydrofluoric acid at 48% concentration in water, used for etching glass and semiconductors. The solution is a normal and necessary method of putting up hydrogen fluoride for safety and transport, and the water does not render the product particularly suitable for specific use rather than for general use.
2811.11.0070% Hydrogen Fluoride Industrial Grade
A high-concentration 70% HF solution for heavy-duty applications like aluminum etching in manufacturing. It is explicitly hydrogen fluoride, meeting Chapter 28 note for inorganic acids of non-metals. The water solution is a normal method of putting up for safety and transport.
2811.11.00Aluminum Brightener HF Solution
An HF-based pickling solution for aluminum surface preparation in metal finishing. The primary active ingredient is hydrogen fluoride, and the solution is classified as hydrogen fluoride under tariff item 2811.11.00. Bulk imported for anodizing lines.
2811.11.00Anhydrous HF Gas Cylinder
Compressed anhydrous hydrogen fluoride gas in steel cylinders for fluorination reactions. Strictly pure hydrogen fluoride, an inorganic non-metal acid. Used in chemical synthesis plants.
2811.11.00Anhydrous 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 tariff item 2811.11.00 as it is the specific inorganic acid.
2811.11.00Buffered Hydrofluoric Acid (BHF)
Buffered HF solution typically 6:1 HF:NH4F for silicon dioxide etching in microelectronics. Primarily hydrogen fluoride, thus classified under tariff item 2811.11.00 per Chapter 28 inorganic acids note, despite buffering. Imported for precision etching.
2811.11.00Corrosion Inhibited HF
HF with proprietary inhibitors for safe stainless steel handling in oilfield applications. Still hydrogen fluoride dominant for classification under tariff item 2811.11.00. Drummed for the energy sector.
2811.11.00Electronic Grade Hydrofluoric Acid (HF)
Ultra-pure hydrofluoric acid for semiconductor wafer cleaning, with impurities below ppb levels. Falls under tariff item 2811.11.00 as chemically defined hydrogen fluoride for inorganic acid category in Chapter 28. Packaged in high-purity containers.
2811.11.00Fluorspar Derived HF
Hydrogen fluoride produced from fluorspar (CaF2) reaction, 99% purity for refrigerant synthesis. Pure HF qualifies for tariff item 2811.11.00 per Chapter 28 chemical definition. Gaseous or liquid form.
2811.11.00Glass Etching Hydrofluoric Acid
20-30% HF solution specialized for frosted glass production and decorative etching. It is hydrogen fluoride per tariff item 2811.11.00, as the defining inorganic acid component. Commonly imported for architectural and automotive glass.
2811.11.00High Purity Anhydrous HF
99.99% anhydrous HF for advanced fluoropolymer and pharma synthesis. Classified under tariff item 2811.11.00 as pure inorganic hydrogen fluoride. Specialized monel or Teflon vessels.
2811.11.00Lab Grade Hydrofluoric Acid
ACS reagent grade HF for analytical chemistry and research labs, typically 48-50%. Chemically defined hydrogen fluoride under tariff item 2811.11.00, excluding lab mixtures per notes. In 500mL plastic bottles.
2811.11.00Pharma Grade Hydrofluoric Acid
High-purity HF meeting USP standards for pharmaceutical fluoride production and synthesis. Classified as hydrogen fluoride under tariff item 2811.11.00, chemically defined inorganic acid excluding organo-inorganics per Chapter 28.
2811.11.00Semiconductor Cleaning HF
Dilute 0.5% HF for native oxide removal in wafer fabrication. Remains hydrogen fluoride under tariff item 2811.11.00 due to chemical definition in Chapter 28. Shipped in high-purity Teflon bottles.
2811.11.00Technical Grade 50% Hydrofluoric Acid
50% HF technical grade for general industrial cleaning and chemical intermediate production. Classified under tariff item 2811.11.00 for hydrogen fluoride as defined inorganic acid. Standard in 55-gallon drums.