Chromium(III) Sulfate Pentahydrate from Mexico
Chromium(III) sulfate pentahydrate is an inorganic salt consisting of chromium cations and sulfate anions, typically appearing as a blue-green crystalline powder. It falls under HTS 2833.29.40.00 as a sulfate of chromium, chemically defined per Chapter 28 notes. Used in chrome plating, leather tanning, and as a catalyst in organic synthesis.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify chemical purity and provide assay certificates to confirm it meets 'chemically defined' criteria under Chapter 28 Note 1
• Include Safety Data Sheets (SDS) and CAS number (10042-45-2) in documentation for customs clearance
• Avoid common pitfalls like classifying as a mixture if stabilizers exceed 5%; test for homogeneity