Zinc Oxide Catalyst Support Precursor from Canada
High surface area zinc oxide used as precursor for catalyst supports in petrochemical reforming processes. Chemically defined under HTS 2817.00.00.00 before final catalyst formation.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Pore volume and surface area (BET) specifications required
• Thermal stability data for high-temperature applications
• Classify as pure compound before impregnation with active metals