Ferric Ammonium Sulfate from China
Ferric ammonium sulfate ((NH4)Fe(SO4)2·12H2O) is used in analytical chemistry and as a mordant in dyeing. It qualifies under HTS 2833.29.20.00 as a sulfate of iron, treated as a metal salt per Chapter 28 notes on complex salts.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Declare as 'of iron' emphasizing the iron component to align with subheading
• Include REACH or TSCA registration if for lab/research import into US
• Prevent moisture absorption with desiccants to avoid hydrate state changes