Electronic Grade Phosphoric Acid 99%
Ultra-pure 99% phosphoric acid for semiconductor etching and wafer cleaning in microchip production. It qualifies under HTS 2809.20.00.30 as chemically defined phosphoric acid due to its high purity and lack of organic additives. Packaged in cleanroom-compatible fluoropolymer bottles.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +35.0% | 35% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If doped with alkali metals for electronics
Doped chemical elements for electronics may shift per chapter note on silicon/selenium analogs.
If as part of photoresist stripping solutions
Mixtures for semiconductor processing containing phosphoric acid classify in 3824.
If used in paint/pigment production
Phosphoric acid in paints becomes a preparation under Chapter 32.
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Import Tips & Compliance
• Require particle count and metal impurity certificates for cleanroom validation
• Declare under TSCA with PMN if new impurities; segregate from industrial grades
• Ensure REACH-like documentation for EU-sourced acid to meet US import standards
Related Products under HTS 2809.20.00.30
85% Food Grade Phosphoric Acid
Phosphoric acid at 85% concentration, certified for food use in beverages like colas and as a pH regulator in processed foods. It falls under HTS 2809.20.00.30 as chemically defined phosphoric acid, distinct from diphosphorus pentaoxide or polyphosphoric acids. This pure inorganic compound is essential for acidification without adding flavors.
Industrial 75% Phosphoric Acid
75% phosphoric acid used in metal surface treatment, rust removal, and phosphate coating for automotive parts. Classified under HTS 2809.20.00.30 as 'other' phosphoric acid, meeting Chapter 28 criteria for chemically defined inorganic acids. Supplied in bulk IBC totes for manufacturing applications.
Pharmaceutical Grade Phosphoric Acid
USP-grade phosphoric acid used as an excipient in oral suspensions, buffers, and effervescent tablets. Falls under HTS 2809.20.00.30 as pure phosphoric acid, chemically defined per Chapter 28 notes, excluding organo-inorganic compounds. Supplied in sterile, low-bioburden containers.
Polyphosphoric Acid Equivalent 115% Basis
Phosphoric acid standardized to 115% P2O5 basis, bordering polyphosphoric but classified as simple phosphoric acid under HTS 2809.20.00.30. Used in catalyst production and polymer synthesis. Chemically defined per subheading note excluding true poly forms.
Dentistry Grade Phosphoric Acid Etchant
37% phosphoric acid gel for dental enamel etching prior to bonding composite restorations. Classified under HTS 2809.20.00.30 as phosphoric acid, though gelled, since base compound is chemically defined inorganic acid. Syringe-dispensed for professional dental use.
Water Treatment Phosphoric Acid 30%
30% phosphoric acid for corrosion inhibition in cooling towers and boiler systems by forming protective phosphate films. Under HTS 2809.20.00.30 as chemically defined phosphoric acid for industrial water treatment. Typically tankered in bulk.