Pyrophosphoric Acid 85% from Germany
Pyrophosphoric acid (H4P2O7) at 85% concentration is a viscous liquid used in organic synthesis and as a catalyst. Falls under HTS 2811.19.61.90 as an other inorganic acid, a condensed phosphorus oxyacid not elsewhere specified. Chemically defined per Chapter 28 notes.
Duty Rate — Germany → United States
14.2%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Submit molecular structure confirmation to differentiate from orthophosphoric acid
• Handle as UN 1803 corrosive; use HDPE drums with secondary containment