Manganese Dioxide Oxidation Catalyst from Canada
Electrolytic MnO2 used as depolarizer catalyst in alkaline batteries. Inorganic reaction accelerator under HTS 3815.90.3000.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Electrolytic vs chemical grade distinguished by tap density (>4.2g/cm³)
• IEC/EN standards compliance for battery performance certification
• Heavy metal impurities (<50ppm) testing required for battery safety