Sodium Tungsten Borohydride from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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