Bismuth Subnitrate Catalytic Promoter from Mexico
Bismuth subnitrate serves as a promoter in automotive catalytic converters and NOx reduction systems, enhancing thermal stability. This basic bismuth nitrate is a wholly inorganic reaction accelerator. It is classified under tariff item 3815.90.00 as a catalytic preparation.
Duty Rate — Mexico → Canada
0%
Import Tips
• Document the product's role as a promoter in catalytic systems to justify classification under 3815.90.00
• Ensure the product is not mixed with organic binders that could change classification
• Verify compliance with Canadian vehicle emission regulations if used in automotive parts