Sodium Peroxotungstate from Mexico
Sodium peroxotungstate is a peroxoacid salt used as a catalyst in oxidation reactions for chemical synthesis. It is classified under tariff item 2842.90.00 as an other salt of an inorganic peroxoacid, consistent with Chapter 28 coverage of peroxoacids of inorganic bases.
Duty Rate — Mexico → Canada
0%
Import Tips
• Provide a detailed technical datasheet to the CBSA to confirm the peroxoacid salt composition
• If the product is a catalyst supported on a substrate, consider whether it is a preparation of Chapter 38
• Ensure proper hazardous goods documentation if the peroxo compound is oxidising