Ammonium Oxalate from Mexico
Diammonium oxalate ((NH4)2C2O4·H2O) used in textile dyeing and analytical reagent applications. Classified HTS 2917.11.00.00 as salt of oxalic acid per chapter inorganic salt classification rules. Chemically defined compound meeting chapter purity standards.
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
• Specify crystal water content (1H2O) on COA as affects molecular weight declarations
• Ammonium salts evolve ammonia; ensure ventilation requirements in shipping papers
• Distinguish from fertilizer grades (3102.30) by declaring 'technical grade >98% purity'