Sodium Tungsten Borohydride from Canada
Sodium tungsten borohydride serves as a reducing agent in organic synthesis and fuel cell research. As a chemically defined boride complex of tungsten, it falls under HTS 2850.00.10.00, distinguished from simple salts by chapter note 6 on complex compounds. Typically white crystalline powder soluble in polar solvents.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Classify based on tungsten borohydride core structure, not sodium counterion per complex salt rules
• Corrosive solid label required (UN3260); test pH of aqueous solutions
• Avoid classification disputes by providing molecular formula confirmation