Other

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.

70% 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.

Aluminum 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.

Anhydrous 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.

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 tariff item 2811.11.00 as it is the specific inorganic acid.

Buffered 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.

Corrosion 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.

Electronic 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.

Fluorspar 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.

Glass 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.

High 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.

Lab 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.

Pharma 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.

Semiconductor 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.

Technical 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.

Anhydrous Hydrogen Cyanide (Industrial Grade)

Anhydrous hydrogen cyanide (HCN) in industrial grade, supplied as a liquid or gas for large-scale production of nylon precursors and pharmaceuticals. It is a separate chemically defined compound of carbon and nitrogen, classified under this tariff item as hydrogen cyanide (hydrocyanic acid).

HCN Laboratory Reagent Grade

Laboratory reagent grade hydrogen cyanide in stabilized ampoules for analytical chemistry and organic synthesis. It is a chemically defined compound of hydrogen cyanide, meeting the criteria for this tariff item as a separate inorganic acid.

High-Purity HCN for Adiponitrile Production

Ultra-pure hydrogen cyanide (99.9% purity) distilled for electrohydrodimerization to adiponitrile in nylon-6,6 manufacturing. It is a separate chemically defined compound of hydrogen cyanide, classified under this tariff item as a simple cyanogen acid.

Hydrocyanic Acid Aqueous Solution (10% HCN)

An aqueous solution of hydrogen cyanide stabilized at 10% concentration for safer handling in industrial fumigation and chemical processes. It is a solution of a chemically defined compound in water, covered by this tariff item as hydrogen cyanide.

Hydrogen Cyanide Gas (99% Purity)

Hydrogen cyanide gas at 99% purity, used primarily in chemical synthesis for producing adiponitrile and methionine. It is a separate chemically defined compound of hydrogen cyanide, classified under this tariff item as a simple cyanogen acid.

Stabilized Hydrocyanic Acid for Fumigation (5% Solution)

Phosphine-stabilized 5% HCN aqueous solution packaged for agricultural fumigation of soil and structures. It is a solution of hydrogen cyanide in water with a stabilizer for safety, falling under this tariff item as hydrogen cyanide.

33% Hydrobromic Acid in Acetic Acid

A 33% hydrobromic acid solution in glacial acetic acid is a chemically defined inorganic acid, but the solvent is not water. Under Chapter Note 1(c), it qualifies if the acetic acid is a normal and necessary method of putting up for safety or transport and does not render the product suitable for specific use.

48% Hydrobromic Acid Solution

A 48% aqueous solution of hydrogen bromide gas (HBr) is a chemically defined inorganic acid in water. It is classified under this tariff item as an other inorganic acid of a non-metal, per Chapter Note 1(b).

Anhydrous Hydrobromic Acid Gas Cylinder

Anhydrous HBr gas in steel cylinders is a chemically defined inorganic acid in gaseous form. It is classified under this tariff item as an other inorganic acid of a non-metal, as it is not excluded by Chapter Notes.

Anhydrous Sulfamic Acid Flakes

Anhydrous sulfamic acid flakes are a dry, crystalline form of sulfamic acid (H3NSO4) used for analytical chemistry and laboratory reagent applications. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a separate chemically defined compound of sulfur, nitrogen, hydrogen and oxygen.

Antimonic Acid Colloidal

Colloidal antimonic acid (HSbO3·nH2O) used in flame retardants and catalysts. It is an inorganic oxygen compound of a non-metal, chemically defined despite its colloidal form, and classifiable under this tariff item as an 'other inorganic acid'.

Arsenic Acid Anhydride Powder

Anhydrous arsenic acid powder, also known as arsenic pentoxide when dehydrated, is a chemically defined inorganic compound used in electronics etching. It is classified as an inorganic acid of a non-metal under Chapter 28, meeting the criteria of Note 1(a) to Chapter 28.

Arsenic Acid for Flame Retardant Synthesis

Purified arsenic acid used for synthesizing flame retardants in plastics is a chemically defined inorganic acid. It is not a finished flame retardant product, so it falls under this tariff item as an other inorganic acid of a non-metal.

Arsenic Acid H3AsO4 (99% Purity)

Arsenic acid (H3AsO4) at 99% purity is a colorless to white crystalline solid used in chemical synthesis and as a reagent. It is a separate chemically defined compound of a non-metal, qualifying under this tariff item.

Arsenic Acid Solution 70%

Arsenic acid (H3AsO4) 70% solution used in wood preservatives and glass manufacturing. It is a chemically defined inorganic oxyacid of a non-metal, and qualifies under this tariff item as an 'other inorganic acid'.

Arsenic Pentoxide Solution (50% Aqueous)

An aqueous solution of arsenic pentoxide (As2O5), equivalent to arsenic acid, is used in glass manufacturing and wood preservation. As a solution of a chemically defined inorganic compound in water, it falls under this tariff item per Chapter Note 1(b).

Arsine Gas

Arsine gas (AsH3) is a highly toxic, flammable gas used in microelectronics for doping semiconductor materials. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a hydride of the nonmetal arsenic and meets the Chapter 28 definition of a separate chemically defined compound.

Battery-Grade Arsenic Acid Electrolyte

Ultra-pure arsenic acid for specialty battery electrolytes is a chemically defined inorganic acid. It is not a finished electrolyte, so it is classified under this tariff item as an other inorganic acid.

Boric Acid Powder Technical Grade

Technical grade boric acid (H3BO3) powder used in ceramics, herbicides, and antiseptics. Although heading 28.10 specifically covers boric acid, this product may fall under this tariff item if it is a form not elsewhere specified, as an 'other inorganic acid'.

Carbonyl Sulfide

Carbonyl sulfide (COS) is a colorless, poisonous gas used as a pesticide fumigant and chemical intermediate. It is classified under tariff item 2811.19.00 as an 'other inorganic oxygen compound of non-metals' because Chapter 28 Note 2 specifically lists carbon oxysulphide as classifiable in this chapter.

Diphosphorus Tetroxide

Diphosphorus tetroxide (P2O4) is a white hygroscopic solid used as a phosphorylating agent in chemical synthesis. It is classified under tariff item 2811.19.00 as an 'other inorganic oxygen compound of non-metals' because it is a separate chemically defined oxide of phosphorus, not specifically named elsewhere in Chapter 28.

Food Grade Sulfamic Acid

Food grade sulfamic acid is an FCC-grade product approved for use as a processing aid in food manufacturing, such as beer line cleaning. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a separate chemically defined compound meeting food purity standards.

Fuming Hydrobromic Acid 55%

Fuming 55% hydrobromic acid that emits HBr vapors is a chemically defined inorganic acid. It is classified under this tariff item as an other inorganic acid, provided it is in aqueous solution.

Germanium Dioxide Hydrated (Germanic Acid)

Hydrated germanium dioxide, or germanic acid (H2GeO3), used in fiber optics and catalysts. It is an inorganic oxygen compound of a non-metal, chemically defined, and falls under this tariff item as an 'other inorganic acid'.

Germanium Hydride

Germane (GeH4) is a colorless, pyrophoric gas used for semiconductor vapor deposition. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a hydride of the nonmetal germanium and meets the Chapter 28 definition of a separate chemically defined compound, provided it is not doped.

High-Purity Arsenic Acid for Glass Production

High-purity H3AsO4 used as a fining agent in optical glass manufacturing is a chemically defined inorganic acid. It is not excluded by Chapter Note 3(d) as it is not a luminophore, so it falls under this tariff item.

Hydrobromic Acid 47-52% Semiconductor Grade

Ultra-pure hydrobromic acid (47-52% assay) for semiconductor manufacturing is a chemically defined inorganic acid in aqueous solution. It is classified under this tariff item as an other inorganic acid.

Hydrobromic Acid 62% Technical Grade

Hydrobromic acid at 62% concentration is a strong inorganic acid used in organic synthesis for bromination reactions and as an intermediate in pharmaceutical manufacturing. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a separate chemically defined compound of hydrogen and bromine, not specifically named elsewhere in Chapter 28.

Hydrogen Selenide Gas

Hydrogen selenide (H2Se) is a colorless, toxic, flammable gas classified as an 'other inorganic acid' under tariff item 2811.19.00. It is a binary compound of hydrogen and the nonmetal selenium, meeting the Chapter 28 definition of a separate chemically defined compound.

Hypophosphorous Acid 50% Solution

Hypophosphorous acid (H3PO2) 50% aqueous solution used as a reducing agent in chemical synthesis and electroless plating. It is an inorganic phosphorus oxyacid, chemically defined, and classifiable under this tariff item as an 'other inorganic acid'.

Industrial Arsenic Acid 75% Solution

A 75% aqueous industrial arsenic acid solution for wood treatment and textile dyeing processes is a chemically defined inorganic acid in water. It qualifies under this tariff item as an other inorganic acid of a non-metal.

Industrial Grade Sulfamic Acid

Industrial grade sulfamic acid is a pure form of sulfamic acid (H3NSO4) used in industrial cleaning and descaling applications to remove rust, limescale and mineral deposits. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a separate chemically defined compound.

Laboratory Reagent Arsenic Acid (ACS Grade)

ACS-grade arsenic acid for analytical chemistry and lab research meets high purity standards as a chemically defined inorganic acid. It is not an organo-inorganic compound, so it falls under this tariff item.

Meta-Arsenic Acid Flakes

Meta-arsenic acid (HAsO2) flakes, a polymeric form used in pharmaceutical intermediates, is a chemically defined inorganic acid. It is classified under this tariff item as an other inorganic acid of a non-metal.

Nitrosyl Chloride

Nitrosyl chloride (NOCl) is a yellow-red gas or liquid used as a nitrosating agent in pharmaceutical synthesis. It is classified under tariff item 2811.19.00 as an 'other inorganic oxygen compound of non-metals' because it is a separate chemically defined compound of nitrogen, oxygen and chlorine, not specifically named elsewhere in Chapter 28.

Nitrosylsulfuric Acid (Chamber Acid)

Nitrosylsulfuric acid (HNO2SO4), also known as chamber acid, used in sulfuric acid production and nitrating mixtures. It is a complex inorganic oxygen compound of non-metals, chemically defined, and falls under this tariff item as an 'other inorganic acid'.

Pharmaceutical Grade Sulfamic Acid

Pharmaceutical grade sulfamic acid is a high-purity product meeting USP standards for use as a pharmaceutical intermediate and stabilizer in drug formulations. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a separate chemically defined compound of sulfur, nitrogen, hydrogen and oxygen.

Phosphoric Acid 85% Technical Grade

Phosphoric acid (H3PO4) at 85% concentration, a clear, colorless liquid used in fertilizers, detergents, and food processing. It is an inorganic phosphorus oxyacid, chemically defined, and classifiable under this tariff item as an 'other inorganic acid'.

Phosphorus Oxychloride

Phosphorus oxychloride (POCl3), also known as phosphoryl chloride, is a colorless liquid used in organic synthesis and as a chlorinating agent. It is classified under tariff item 2811.19.00 as an 'other inorganic oxygen compound of non-metals' because it is a separate chemically defined compound of phosphorus, oxygen and chlorine.

Stibine Gas

Stibine (SbH3) is an extremely toxic, unstable gas used in trace analysis. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a hydride of the nonmetal antimony, meeting the Chapter 28 definition of a separate chemically defined compound.

Sulfamic Acid Descaling Powder

Sulfamic acid in powdered form, packaged for industrial HVAC descaling to remove calcium carbonate deposits. It is a separate chemically defined inorganic compound, an oxygen acid of a non-metal, and qualifies under this tariff item as an 'other inorganic acid'.

Sulfamic Acid for Electroplating Baths

Specialty sulfamic acid for nickel electroplating baths, providing stable pH control and bright finishes. It is a pure inorganic acid, chemically defined, and not excluded by Chapter 28 notes, making it classifiable under this tariff item.

Sulfuric Acid Oleum

Oleum, or fuming sulfuric acid (H2SO4 + SO3), is a highly corrosive liquid used in sulfonation processes. It is classified under tariff item 2811.19.00 as an 'other inorganic acid' because it is a solution of sulfur trioxide in sulfuric acid, distinct from standard sulfuric acid classified in heading 28.07.

Technical Grade Arsenic Acid Crystals

Technical grade arsenic acid (H3AsO4) crystals for industrial applications like pesticide intermediates and flame retardants is a chemically defined inorganic acid. It qualifies under this tariff item as an other inorganic acid.