Platinum Black Supported on Alumina from Germany
High-activity platinum black (finely divided Pt metal) on porous alumina for ammonia oxidation in nitric acid plants. HTS 3815.12.0010 due to platinum as active substance on inorganic support. Used in Ostwald process for industrial fertilizer production.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide promoter metal analysis (e.g
• trace copper or iron) affecting classification stability
• High-value item—insure shipments and declare full replacement cost
• Thermal shock resistant packaging required for high-temperature process catalysts