Platinum Supported Catalyst for Automotive Catalytic Converters
This supported catalyst uses platinum as the active substance on an alumina carrier, designed to convert harmful exhaust gases like CO, NOx, and hydrocarbons into less harmful substances in vehicle catalytic converters. It falls under HTS 3815.12.00 because it is a supported catalyst with precious metal (platinum) as the active component. Primarily used in gasoline engine vehicles for emission control.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If precious metal is not the active substance
Catalysts with base metals like nickel as active component fall under 3815.11, while precious metals specify 3815.12
If imported as pure metal compound without support
Unsupported precious metal compounds (e.g., chloroplatinic acid) are classified in Chapter 28 as salts, not as finished catalysts
If unsupported liquid catalytic preparations
Catalytic solutions or liquid preparations without carrier support go to 3815.90
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Import Tips & Compliance
• Declare exact precious metal loading (e.g
• platinum wt%) on commercial invoice to avoid reclassification; obtain EPA TSCA pre-manufacture notice if for new chemical use; verify carrier material doesn't trigger Chapter 28 classification
Related Products under HTS 3815.12.00
Palladium on Carbon Catalyst for Hydrogenation Reactions
A 5-10% palladium on activated carbon support used in pharmaceutical and fine chemical manufacturing for selective hydrogenation of double bonds and nitro groups. Classified under HTS 3815.12.00 as a supported catalyst with precious metal (palladium) as active substance. Essential for API synthesis and odor removal in flavors/fragrances.
Rhodium/Alumina Catalyst for Acetic Acid Production
High-surface-area rhodium on gamma-alumina support used in the Monsanto process for methanol carbonylation to produce acetic acid. HTS 3815.12.00 classification applies due to precious metal rhodium as active catalytic substance on ceramic support. Industrial scale catalyst for commodity chemical production.
Platinum/Palladium Diesel Oxidation Catalyst
Bimetallic Pt/Pd on cordierite honeycomb support for diesel engine oxidation of CO and HC emissions. Falls under HTS 3815.12.00 as supported catalyst with precious metal compounds active substance. Used in heavy-duty truck and off-road equipment exhaust systems.
Iridium Oxide Supported Catalyst for Hydrazine Decomposition
Iridium oxide on alumina or titania support for catalytic decomposition of hydrazine in spacecraft propulsion systems. HTS 3815.12.00 due to precious metal iridium compound as active substance. Aerospace-grade catalyst for attitude control thrusters.
Gold on Titania Catalyst for CO Oxidation
Nanosize gold particles (2-5nm) supported on TiO2 for low-temperature carbon monoxide oxidation in air purification and fuel cell applications. Classified HTS 3815.12.00 as supported precious metal catalyst. Used in respiratory protection and proton exchange membrane fuel cell startup.
Platinum Black Supported Electrode Catalyst
High-surface-area platinum black on carbon cloth for polymer electrolyte membrane fuel cells (PEMFC). HTS 3815.12.00 as supported precious metal catalyst for electrochemical applications. Key component in hydrogen fuel cell stacks for vehicles and stationary power.