Technical Grade Ammonium Heptamolybdate from United States
Technical grade ammonium heptamolybdate is used in petroleum refining catalysts. As a chemically defined ammonium salt of molybdic acid, it is classifiable under tariff item 2841.70.00 as a molybdate.
Duty Rate — United States → Canada
0%
Import Tips
• Verify the product meets Chapter 28 Note 1(a) requirements for separate chemically defined compounds
• If the product contains impurities, ensure they do not render it particularly suitable for a specific use