Sulfonitric Acid Mixture from Canada
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 — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, 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