Sulfonitric Acid Mixture from Japan
Sulfonitric acid is a freshly prepared mixture of concentrated nitric and sulfuric acids used for nitration in explosives and dyes. It qualifies under HTS 2808.00.00 explicitly as 'sulfonitric acids,' treated as a defined inorganic acid blend per the heading.
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
• Ship under UN 1798 as corrosive mixture with dual acid labeling; prohibit storage near organics to prevent reactions; ensure batch certificates confirm fresh preparation to avoid 3824 reclassification