</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2811.19.61.90/Pyrophosphoric Acid 85%/Japan

Pyrophosphoric Acid 85% from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Calculate with your customs valueVerify classification with AI

Import Tips

• Submit molecular structure confirmation to differentiate from orthophosphoric acid

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