Ammonium Metatungstate Granules from Canada
Ammonium metatungstate granules ((NH4)6H2W12O40) are spray-dried for uniform tungsten powder production, under HTS 2841.80.00. Ideal for thermal spraying applications.
Duty Rate — Canada → United States
5.5%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Granule size distribution prevents dust explosion classification
• Thermal decomposition temp data for safe storage declaration
• APT vs AMT differentiation via FTIR spectrum