Calcium Oxalate from Mexico
Calcium oxalate monohydrate (CaC2O4·H2O) used in ceramics and as analytical standard. HTS 2917.11.00.00 classification follows chapter notes keeping organic acid salts with parent acid heading. Insoluble white powder meeting chemical definition.
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
• Provide particle size distribution (typically 10-50μm) affecting end use declarations
• Insoluble in water; classify as non-hazardous but include full toxicological profile
• Prevent confusion with chapter 28 calcium salts by specifying organic acid parent structure