Ferrous Chloride Tetrahydrate from Mexico
Ferrous chloride tetrahydrate (FeCl2·4H2O), a green crystalline solid, serves as a reducing agent in chemical synthesis, pharmaceuticals, and iron supplements. It is classified in HTS 2827.39.55.00 as 'other chlorides of iron' for its chemically defined inorganic nature under Chapter 28. Highly soluble and oxidizes in air to ferric form.
Duty Rate — Mexico → United States
13.7%
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
Import Tips
• Require COA confirming Fe(II) oxidation state to avoid reclassification; use nitrogen blanketing for shipment
• Avoid pitfall: oxidation during transit leading to ferric mislabeling