Thorium Oxide Ceramic Crucible Material from Canada
High-purity thorium dioxide powder for fabricating crucibles used in rare earth metal melting due to its extreme thermal stability. Meets HTS 2844.30.20.10 as thorium oxide compound with controlled radioactivity. Essential for high-temperature metallurgical processing.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include thermal conductivity specs for verification; segregate from organic materials
• Pitfall: retail-packaged small quantities may trigger consumer product rules