Catalyst Activation Zinc Dust from Japan
Reactive zinc dust for activating hydrogenation catalysts in pharma/chemical synthesis, vapor-condensed <10μm spheres, 96% metallic Zn meeting all 7903.10.00.00 sieve/purity notes.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Hydrogen evolution rate tests validate activity
• Glovebox handling protocols documented
• EPA TSCA new use notification if novel