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2811.19.61.90/Pyrophosphoric Acid 85%/Canada

Pyrophosphoric Acid 85% from Canada

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 — Canada → United States

14.2%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Submit molecular structure confirmation to differentiate from orthophosphoric acid

• Handle as UN 1803 corrosive; use HDPE drums with secondary containment