# 2809 — Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined

HS code 2809 classifies Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. It belongs to Chapter 28 (Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes) of Section VI (Products of the chemical or allied industries) of the Harmonized System.

> Section VI · Products of the chemical or allied industries
> Chapter 28 · Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

**HS code:** `2809`

## Description

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

## Subheadings

- `280910` — Diphosphorus pentaoxide
- `280920` — Phosphoric acid and polyphosphoric acids

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Source: https://hscode.eximagent.ai/28/2809
Last updated: 2026-06-03
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