Thorium Dioxide (ThO2) Powder from Canada
Thorium dioxide (ThO2), also known as thoria, is a chemically defined compound used in high-temperature ceramics and historical gas mantle production. Classified under HTS 2844.30.20.10 as a thorium oxide compound with low specific radioactivity. Its refractory properties make it valuable in specialized industrial applications.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify specific activity <74 Bq/g for Chapter 28 classification; include material safety data sheets
• Common pitfall: confusing with Chapter 31 rare earth compounds