New

Ask Wove anything about tariffs.

Try Tariff Assistant

Other

Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included. > Other > Other

Duty Rate (from China)

0%
MFN TariffFree
Total Effective Rate0%

Products classified under Tariff item 3815.90

3815.90.00

Aluminum Chlorohydrate Catalyst

Catalytic-grade aluminum chlorohydrate used in polymerization processes for water treatment resins. This product consists entirely of inorganic aluminum compounds acting as reaction accelerators, falling under tariff item 3815.90.00.

3815.90.00

Ammonium Molybdate Catalyst

Ammonium heptamolybdate ((NH4)6Mo7O24) is used as a selective oxidation catalyst in acrylic acid production. It is a wholly inorganic molybdenum-based catalytic preparation. This places it under tariff item 3815.90.00 for other catalytic preparations.

3815.90.00

Bismuth Molybdate Selective Oxidation Catalyst

Bismuth molybdate (Bi2Mo3O12) is a mixed metal oxide catalyst used to selectively oxidize propylene into acrolein. Its multilayer structure provides high selectivity in this reaction. As a wholly inorganic catalytic preparation, it falls under tariff item 3815.90.00 for reaction initiators and catalytic preparations not elsewhere specified.

3815.90.00

Bismuth Nitrate Catalyst

Bismuth nitrate is used as a catalytic preparation in organic synthesis, including esterification and oxidation reactions. It acts as a reaction initiator consisting wholly of inorganic bismuth compounds. This places it under tariff item 3815.90.00 for other catalytic preparations.

3815.90.00

Bismuth Subnitrate Catalytic Promoter

Bismuth subnitrate serves as a promoter in automotive catalytic converters and NOx reduction systems, enhancing thermal stability. This basic bismuth nitrate is a wholly inorganic reaction accelerator. It is classified under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Bismuth Triflate Reaction Initiator

Bismuth(III) triflate is a water-tolerant Lewis acid catalyst used in aldol reactions and glycosylations. This inorganic bismuth compound acts as a reaction initiator in organic synthesis. It is classified under tariff item 3815.90.00 for other catalytic preparations.

3815.90.00

Ceria-Zirconia Three-Way Catalyst Washcoat

Ceria-stabilized zirconia washcoat slurry for automotive three-way catalysts, promoting oxygen storage and catalytic conversion of exhaust gases. This preparation is a catalytic component, falling under heading 38.15 as a reaction accelerator.

3815.90.00

Cerium Oxide Polishing Catalyst

Ceria nanoparticles catalyzing chemical mechanical planarization in semiconductor manufacturing. This inorganic reaction accelerator falls under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Chromium Oxide Polymer Catalyst

Phillips catalyst (CrO3 on silica) precursor for HDPE production. This wholly inorganic composition falls under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Cobalt Molybdate Hydrotreating Catalyst

CoMo/alumina catalyst precursor for diesel hydrodesulfurization. This oxide form qualifies as wholly inorganic under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Copper Chromite Catalyst for Ester Hydrogenation

Copper chromite catalyst used for high-pressure hydrogenation of esters to alcohols in chemical manufacturing. This catalytic preparation accelerates organic reactions and falls under heading 38.15.

3815.90.00

Enzyme Immobilized Glucose Isomerase

Immobilized glucose isomerase enzyme catalyst used for high-fructose corn syrup production. Despite its biological origin, this enzyme preparation acts as a catalytic preparation, qualifying under heading 38.15.

3815.90.00

Hydrotreating Cobalt-Molybdenum Catalyst

Cobalt-molybdenum on alumina catalyst for hydrodesulfurization in diesel hydrotreating units. This catalytic preparation accelerates the removal of sulfur from petroleum fractions, falling under heading 38.15.

3815.90.00

Iron Oxide Dehydrogenation Catalyst

Alpha-Fe2O3 catalyst for ethylbenzene dehydrogenation to styrene. This product consists wholly of inorganic iron oxides, qualifying under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Magnesium Oxide Polymerization Catalyst

High-purity MgO powder serving as catalyst in polypropylene production. This wholly inorganic composition qualifies under tariff item 3815.90.00 as a reaction initiator.

3815.90.00

Manganese Dioxide Oxidation Catalyst

Electrolytic MnO2 used as depolarizer catalyst in alkaline batteries. This inorganic reaction accelerator falls under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Mercuric Sulfate Catalyst

Mercuric sulfate (HgSO4) is used as a catalyst in acetylene hydration to produce acetone. This wholly inorganic mercury compound acts as a reaction initiator. It is classified under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Mercury Chloride Catalyst

Mercuric chloride (HgCl2) preparation used as a catalyst in vinyl chloride production and organic synthesis reactions. This inorganic mercury-based reaction initiator falls under tariff item 3815.90.00 as a catalytic preparation not elsewhere specified.

3815.90.00

Mercury Oxide Reaction Initiator

Red mercuric oxide (HgO) prepared for use as a catalyst in laboratory-scale organic reactions and dehydrogenation processes. This inorganic mercury compound is classified as a reaction initiator under tariff item 3815.90.00.

3815.90.00

Molybdenum Disulfide Catalyst

High-purity molybdenum disulfide (MoS2) used as a catalyst in hydrotreating and hydrocracking operations in refineries. This wholly inorganic molybdenum catalytic preparation falls under tariff item 3815.90.00.

3815.90.00

Molybdenum Trioxide Catalyst

Pure molybdenum trioxide (MoO3) used as a catalyst in petroleum refining processes like hydrodesulfurization. This inorganic compound falls under tariff item 3815.90.00 as a catalytic preparation consisting wholly of inorganic substances.

3815.90.00

Molybdic Acid Catalyst

Molybdic acid (H2MoO4) in catalytic grade used for oxidation reactions in chemical manufacturing. This wholly inorganic molybdenum compound qualifies under tariff item 3815.90.00 as a reaction accelerator preparation.

3815.90.00

Nickel Oxide Hydrogenation Catalyst

NiO powder reduced in-situ for fat hydrogenation in edible oil processing. This inorganic reaction initiation product falls under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Silica-Alumina Cracking Catalyst

Amorphous silica-alumina gel catalyst for fluid catalytic cracking in refineries. This wholly inorganic composition qualifies under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Sodium Molybdate Dihydrate Catalyst

Catalytic-grade sodium molybdate dihydrate (Na2MoO4·2H2O) used in epoxidation reactions and as a corrosion inhibitor catalyst. This inorganic molybdenum salt falls under tariff item 3815.90.00 for reaction accelerator preparations.

3815.90.00

Sodium Perborate Accelerator

Anhydrous sodium perborate, a wholly inorganic compound used as an oxygen bleach catalyst in epoxy resin curing systems. It accelerates the cross-linking reaction by releasing active oxygen, making it a reaction accelerator of heading 38.15.

3815.90.00

Titanium Dioxide Accelerator

Nano-grade titanium dioxide used as a photoinitiator in UV-curable coatings. This inorganic catalytic preparation promotes radical polymerization when exposed to UV light, qualifying it as a reaction initiator under heading 38.15.

3815.90.00

Tungsten Carbide Catalyst Powder

Tungsten carbide powder is used as a heterogeneous catalyst in Fischer-Tropsch synthesis and hydrocracking. It consists wholly of inorganic tungsten compounds designed for reaction acceleration. This places it under tariff item 3815.90.00 for other catalytic preparations.

3815.90.00

Tungsten Disulfide Solid Lubricant Catalyst

Tungsten disulfide nanoparticles function as both a solid lubricant and a catalyst in tribochemical reactions. This inorganic tungsten compound accelerates reactions and is used in aerospace and high-performance applications. It is classified under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Tungsten Nitride Ammonia Synthesis Catalyst

Tungsten nitride (W2N) is a catalytic phase for high-pressure ammonia synthesis, offering an alternative to the Haber-Bosch process. This inorganic nitride acts as a reaction accelerator. It falls under tariff item 3815.90.00 for other catalytic preparations.

3815.90.00

Tungsten Oxide Hydrodesulfurization Catalyst

Tungsten oxide (WO3) catalysts, promoted with nickel or cobalt, are used for hydrodesulfurization of petroleum fractions. When consisting wholly of inorganic tungsten compounds without organic binders, they qualify as catalytic preparations. This places them under tariff item 3815.90.00.

3815.90.00

Tungsten Phosphide Hydrogenation Catalyst

Tungsten phosphide (WP) nanoparticles are emerging as a non-noble metal catalyst for hydrodeoxygenation of pyrolysis oils. This inorganic tungsten phosphide acts as a reaction initiator with high activity. It is classified under tariff item 3815.90.00 for other catalytic preparations.

3815.90.00

Vanadium Boride SCR Catalyst Promoter

Vanadium boride (VB2) is used as a promoter in selective catalytic reduction (SCR) systems for NOx control. This inorganic vanadium compound accelerates ammonia-SCR reactions, especially at low temperatures. It is classified under tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Vanadium Pentoxide Catalyst

Vanadium pentoxide (V2O5) is the primary catalyst for sulfuric acid production via the contact process. It is a wholly inorganic vanadium-based reaction accelerator. This qualifies it for tariff item 3815.90.00 as a catalytic preparation.

3815.90.00

Vanadium Pentoxide SCR Catalyst

Vanadium pentoxide-based selective catalytic reduction (SCR) catalyst used to reduce nitrogen oxide emissions in power plant flue gases. This wholly inorganic catalytic preparation accelerates the reaction between NOx and ammonia, falling under heading 38.15.

3815.90.00

Vanadium Phosphate Catalyst

Vanadium phosphorus oxide (VPO) catalyst is used in n-butane selective oxidation to maleic anhydride. This inorganic vanadium compound functions as a reaction accelerator with high selectivity. It is classified under tariff item 3815.90.00 for other catalytic preparations.

3815.90.00

Vanadium Silicide Metathesis Catalyst

Vanadium silicide (V3Si) is an intermetallic compound used in olefin metathesis reactions under high-pressure conditions. This wholly inorganic vanadium-based catalytic preparation offers unique activity for propene disproportionation. It falls under tariff item 3815.90.00.

3815.90.00

Zeolite Y Reaction Initiator

Synthetic zeolite Y faujasite used as a shape-selective catalyst in hydrocarbon cracking processes. This aluminosilicate framework acts as a reaction initiator by providing active sites for catalytic reactions, qualifying under heading 38.15.

3815.90.00

Zinc Stearate Powder

Zinc stearate powder used as a lubricant and release agent in plastics and rubber manufacturing. Although described as a catalytic preparation in the source, zinc stearate is a metal salt of a fatty acid and may not function as a reaction accelerator; classification under 3815.90.00 requires verification of catalytic activity.

3815.90.00

Zirconium Oxide Solid Acid Catalyst

Sulfated zirconia solid acid catalyst used for alkylation reactions in gasoline production. This inorganic zirconia-based preparation accelerates hydrocarbon reactions, qualifying as a catalytic preparation under heading 38.15.