Phosphoric Acid 85% Technical Grade
Phosphoric acid (H3PO4) at 85% concentration is a clear, colorless liquid used in fertilizers, detergents, and food processing. It falls under HTS 2811.19.61.90 as an other inorganic acid, specifically a phosphorus oxyacid not classified elsewhere in heading 2811. This classification applies to its chemically defined inorganic nature per Chapter 28 notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as diphosphorus pentaoxide (P2O5)
Pure P2O5, the anhydride form, is classified in 2809.20 as diphosphorus pentaoxide, but hydrated forms become phosphoric acid in 2811.
If blended into phosphatic fertilizers
When mixed with other substances for fertilizer use per Chapter 31 note 3, it shifts from pure chemical to Chapter 31 mineral/chemical fertilizers.
If containing organic stabilizers or additives
Additions making it organo-inorganic or not chemically defined per Chapter 28 note 2(b) move it to mixtures in 3824.
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Import Tips & Compliance
• Verify concentration and purity via Certificate of Analysis (COA) to confirm classification under 2811.19, avoiding reclassification to 2809 for diphosphorus pentaoxide
• Ensure proper UN 1805 hazardous material declaration and packaging compliant with DOT regulations for corrosive liquids
Related Products under HTS 2811.19.61.90
Hypophosphorous Acid 50% Solution
Hypophosphorous acid (H3PO2) 50% aqueous solution serves as a reducing agent in chemical synthesis and electroless plating. It is classified in HTS 2811.19.61.90 as an other inorganic phosphorus oxyacid. Excluded from Chapter 28 note 2 only for specific carbon compounds, qualifying as chemically defined.
Boric Acid Powder Technical Grade
Technical grade boric acid (H3BO3) powder used in ceramics, herbicides, and antiseptics. Although subheading 2810.00 covers boric acid primarily, purer technical grades or specific forms may fall under 2811.19.61.90 as other inorganic oxygen compounds.
Germanium Dioxide Hydrated (Germanic Acid)
Hydrated germanium dioxide, or germanic acid (H2GeO3), used in fiber optics and catalysts. Falls under HTS 2811.19.61.90 as other inorganic germanium oxyacid.
Silicic Acid Precipitated
Precipitated silicic acid (H2SiO3 gel) used as anti-caking agent and absorbent. Classifies in HTS 2811.19.61.90 as other inorganic acid of nonmetal silicon. Distinct from silica in 2811.22.
Arsenic Acid Solution 70%
Arsenic acid (H3AsO4) 70% solution is used in wood preservatives and glass manufacturing. Classified in HTS 2811.19.61.90 as an other inorganic oxyacid of nonmetal arsenic. Qualifies under Chapter 28 for chemically defined inorganic acids.
Antimonic Acid Colloidal
Colloidal antimonic acid (HSbO3·nH2O) is applied in flame retardants and catalysts. It is an other inorganic acid under HTS 2811.19.61.90, oxygen compound of nonmetal antimony. Chemically defined despite colloidal form.