Silicotungstic Acid Hydrate from China
Silicotungstic acid hydrate functions as a catalyst in esterification reactions. It is a complex tungstate with a tungstate core structure, classified under tariff item 2841.80.00. The product is a green acid catalyst.
Duty Rate — China → Canada
0%
Import Tips
• Provide the exact chemical formula and hydration level
• Ensure the product is not classified as a heteropolyacid, which may be classified elsewhere
• Verify the intended catalytic application