Selenium Dioxide from Mexico
Selenium dioxide (SeO2) is a white, volatile crystalline solid used in organic synthesis, as an oxidizing agent, and in glass coloring. As a chemically defined inorganic oxygen compound of the non-metal selenium, it is classified under tariff item 2811.29.00. Chapter 28 notes exclude doped forms for electronics, which would fall under heading 38.18, so this product is correctly placed here when unworked.
Duty Rate — Mexico → Canada
0%
Import Tips
• Confirm the selenium dioxide is not doped for electronics use, as that would require classification under heading 38.18
• Provide a certificate of analysis to the CBSA to prove chemical identity and purity
• Check if selenium compounds are subject to environmental controls under the Canadian Environmental Protection Act