HS Code 2809Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined

What HS code 2809 covers

It also takes the oxide of phosphorus, which many buyers call phosphorus pentoxide. Some traders write the heading as HSN code 2809. The digits are the same.

The legal text says the goods can be chemically defined or not. So a mixed product can still sit here. What matters is that the main substance is the oxide or one of the acids.

The Harmonized System is a shared naming scheme for traded goods. Countries agree on the first six digits. Each country then adds its own digits, so check your national tariff for the full code. This page covers customs classification only and gives no duty rates.

Chapter 28 inorganic chemicals is the wider family. Acids, oxides and salts of non-metals sit side by side there, which is why neighbouring headings can look alike.

HS 280910 vs 280920: which code to use

Every shipment needs one six-digit code. Your choice depends on the chemical name and form shown on the invoice and the safety data sheet. If the invoice is vague, ask your supplier for both documents before you file.

The split is easy to remember. One code is for the oxide, a single compound. The other code is for the acids.

• Choose 280910 when the goods are the oxide, also sold as phosphorus pentoxide.
• Choose 280920 for any phosphoric acid product, whether plain or poly.
• If your product is a salt of these acids, neither code fits. Read the next section.

Related headings not classified under 2809

Some nearby products look alike but belong to other headings. Mixing them up can cause wrong declarations and delays at the border.

Not sure where your product fits? Try the HS code classifier before you file.

• Salts of phosphoric acid, such as phosphates, go to heading 2835.
• Nitric acid goes to heading 2808.
• Boric acids and oxides of boron go to heading 2810.
• Other inorganic acids not named elsewhere go to heading 2811.

HS code 2809 import export data: buyers and suppliers

A code tells you what a product is. It does not tell you who buys it or who sells it. Shipment records fill that gap, because each record links a product to the companies behind it.

EximDataX shows shipment-level import and export records from official customs sources. Coverage: 43 direct customs feeds plus 184 mirror-derived countries. Named buyers and named suppliers are available in 38 of the 43 direct markets. Most markets refresh weekly and some refresh daily. You can search by HS code to see who imports and exports a product, and book a free demo.

Start with the import data or export data view, then narrow the results to your code. Use the buyer and supplier views to build a list of companies to contact.