Synthetic Silica Gel Powder for Catalyst Support from Canada
Fine powder synthetic silica gel used as inert support for petroleum cracking catalysts. HTS 2811.22.10.00 applies to pure synthetic SiO2 before impregnation with active metals.
Duty Rate — Canada → United States
13.7%
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
• Specify BET surface area (>300 m²/g) in specs for catalyst-grade verification
• Pure support stays 2811; metal-impregnated becomes 3815 (catalysts)
• Dust hazard precautions required for fine powders in shipping