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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%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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'