Ammonium Bromate from Japan
Ammonium bromate (NH4BrO3) is an unstable oxidizer used in analytical chemistry and water treatment formulations. Under HTS 2829.90.61.00 as 'other' bromates, it qualifies per Chapter 28 note on ammonium salts. Stabilized forms prevent decomposition during storage.
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
• Include thermal stability data; ammonium salts require temperature-controlled shipping
• Declare under UN 2465; segregate from flammables per IMDG Code
• Avoid classifying with fertilizers (3102); purity >95% keeps it in Chapter 28