Cerium Sulfate Octahydrate from Canada
Hydrated cerium(IV) sulfate used in water treatment and as an oxidizing agent. It is an 'other' cerium compound under HTS 2846.10.0050, as sulfates of rare-earths are not covered by general sulfate headings (2833) per Chapter structure.
Duty Rate — Canada → United States
5.5%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Confirm valence state (Ce(IV)) in documentation to match exact compound
• Label as hazardous oxidizer per DOT regulations
• Prevent reclassification to 2833 by citing Chapter 28 rare-earth specificity