Ferrous Sulfite Crystals from Canada
Ferrous sulfite (FeSO3) crystals employed in analytical chemistry and reducing applications. Meets HTS 2832.20.00.00 criteria as an 'other sulfite' of iron, chemically defined inorganic compound.
Duty Rate — Canada → United States
13.1%
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
• Stabilize against oxidation with inert atmosphere packaging for import
• Lab-grade requires USP/ACS specs; generic grades may incur higher scrutiny
• Iron compounds trigger ITAR checks if military end-use suspected