Anhydrous Phosphorus Pentoxide Flake Form
Anhydrous phosphorus pentoxide in flake form, a physical variant of diphosphorus pentaoxide (P2O5) designed for easier handling in automated chemical processing lines. It is used in the synthesis of phosphoric acid anhydrides and as a catalyst support. The flake form does not alter its chemical identity, so it remains classifiable under tariff item 2809.10.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the flakes are mixed with other oxides or impurities that alter their essential character
Mixtures not meeting the purity standards of heading 28.09 may fall under other inorganic chemical headings.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the product is labelled with its chemical name (diphosphorus pentaoxide) and purity to support classification
• Declare the correct CAS number (1314-56-3) on customs documents
• Check if a controlled goods permit is needed under Canada's chemical regulations
Related Products under Tariff item 2809.10.00
Diphosphorus Pentaoxide Anhydride P2O5
Diphosphorus pentaoxide (P2O5), also known as phosphorus pentoxide, is a white, deliquescent powder used primarily as a dehydrating and drying agent in chemical synthesis. It reacts with water to form phosphoric acid, making it a key intermediate in producing various phosphate compounds. As a separate chemically defined compound, it is correctly classified under tariff item 2809.10.00.
P2O5 Phosphorus Pentoxide Technical Grade
Technical grade diphosphorus pentaoxide, a powdery white solid used in large-scale production of phosphate esters and flame retardants. Its strong dehydrating power makes it indispensable in manufacturing detergents and other industrial chemicals. Despite its technical grade, it remains a separate chemically defined compound, qualifying for tariff item 2809.10.00.
Phosphorus Pentoxide Desiccant Grade
High-purity phosphorus pentoxide in granular form, optimized for use as a desiccant in laboratory and industrial drying applications. It avidly absorbs moisture from solvents and gases, forming phosphoric acid traps. The granular form is a physical presentation of the same chemical compound, so it is classifiable under tariff item 2809.10.00.