Potassium Dichromate Crystals from Mexico
Potassium dichromate (K2Cr2O7) in crystalline form is a strong oxidizer and salt of dichromic acid. Classified under HTS 2841.50.91.00 as an 'other' dichromate, distinct from basic chromates like chromic acid. Widely used in analytical chemistry, photography, and as a mordant in dyeing.
Duty Rate — Mexico → United States
13.1%
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
• Label packages with UN hazard class 5.1 (oxidizer) and ensure DOT-compliant shipping documentation
• Provide assay certificates proving >98% purity to avoid reclassification as a preparation under 3824
• Check state-level restrictions on hexavalent chromium; pitfall is failing to declare for superfund reporting