Chlorosulfuric Acid Anhydride for Polymer Processing from Japan
Anhydrous chlorosulfuric acid used to chlorosulfonate polymers like polyethylene for ion-exchange resins and membranes. It is a separate chemically defined inorganic compound, meeting Chapter 28 Note 1(a), and not excluded by Chapter 28 Note 3.
Duty Rate — Japan → Canada
0%
Import Tips
• Confirm the product is anhydrous and free of added stabilizers that could alter classification
• Provide end-use documentation if requested to support the industrial application