Oxalic Acid Dihydrate from Canada
Oxalic acid dihydrate (C2H2O4·2H2O) is the crystalline form of oxalic acid commonly used in industrial cleaning and metal polishing. It falls under HTS 2917.11.00.00 as a separate chemically defined acyclic polycarboxylic acid. This pure compound meets chapter 29 note (a) without exclusions.
Duty Rate — Canada → United States
13.1%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Verify purity certificate showing >99% oxalic acid content to confirm classification under 2917.11 vs mixtures in chapter 38
• Include Material Safety Data Sheet (MSDS) documenting corrosive nature and proper hazard labeling for DOT compliance
• Avoid common pitfall of classifying technical grade with impurities >1% which may shift to 3824 as chemical preparations