Sodium Tungstate Dihydrate from Canada
Sodium tungstate dihydrate (Na2WO4·2H2O) is a white crystalline salt derived from tungstic acid, classified under HTS 2841.80.0050 as an 'other' tungstate (wolframate) salt of a peroxometallic or oxometallic acid. It is commonly used in the production of tungsten metal and as a reagent in chemical synthesis.
Duty Rate — Canada → United States
5.5%
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 purity and hydration state via certificate of analysis to confirm classification as chemically defined tungstate
• Ensure SDS and proper hazardous material labeling for transport, as it may be regulated
• Avoid misclassification as tungsten oxide (2825.90); tungstates are distinct metal salts