Fluoboric Acid 40% Solution from Canada
Fluoboric acid (HBF4), a complex fluorine salt in 40% aqueous solution, is used in metal plating and electronics etching under HTS 2826.90.90. As tetrafluoroboric acid, it qualifies as 'other complex fluorine salts'. This corrosive liquid requires specialized handling.
Duty Rate — Canada → United States
3.1%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Ship as UN 1777 corrosive liquid; limit concentration documentation; avoid glass containers prone to reaction