HS code · 6-digit subheading
HS Code 2809.10 – Diphosphorus pentoxide
HS code 2809.10 is the 6-digit subheading for diphosphorus pentoxide. It is used for phosphorus pentoxide, diphosphorus pentoxide, P2O5, industrial-grade P2O5 and reagent-grade P2O5.
What HS 2809.10 covers
Diphosphorus pentoxide, also known as phosphorus pentoxide, is a powerful dehydrating agent and a key intermediate in the production of various phosphorus compounds, making it a specialized but important commodity in international chemical trade. Its primary role is in the synthesis of phosphoric acid, particularly the higher purity grades, and in the manufacture of organic phosphorus compounds, including plasticizers, flame retardants, and certain pharmaceuticals. It is also used as a desiccant in laboratories and industrial processes due to its strong affinity for water. Importers are typically chemical manufacturers and research institutions requiring a potent dehydrating agent or a phosphorus source for synthesis. Exporters are usually countries with established phosphorus chemical industries. Key aspects of its trade involve careful handling and storage due to its extreme reactivity with water, forming phosphoric acid and releasing significant heat. It is corrosive and requires specialized, moisture-proof packaging and transport. Its niche applications ensure a steady, albeit smaller, global trade volume compared to bulk acids, supporting advanced chemical manufacturing and research worldwide.
- Covers
- Phosphorus pentoxide
- Diphosphorus pentoxide
- P2O5
- Industrial-grade P2O5
- Reagent-grade P2O5
- Phosphorus oxide
- Examples
- ICL Phosphorus Pentoxide
- Arkema P2O5
- Lanxess P2O5
- Sigma-Aldrich Phosphorus Pentoxide
- Merck KGaA P2O5
Codes often confused with 2809.10
Common mistake. This code is specific to diphosphorus pentoxide. It might be confused with other phosphorus oxides or even phosphoric acid (280920), but P2O5 is a distinct compound used as a precursor or dehydrating agent, not the acid itself.
Top exporters and importers of HS code 280910, 2025
In 2025, the largest exporter of HS code 280910 in UN Comtrade data was China, with 67% of world exports; the largest importer in UN Comtrade data was Spain, with 18% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 China $28M 67% of world exports
- 2 Netherlands $6.1M 15% of world exports
- 3 India $5.0M 12% of world exports
World total: $41M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Spain $9.0M 18% of world imports
- 2 Germany $7.9M 16% of world imports
- 3 India $7.8M 16% of world imports
World total: $50M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 2809.10
Brazil does not split HS 2809.10: its NCM code is 2809.10.00.
All Brazil NCM codes in heading 28.09 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2809.10
What is HS code 280910?
HS code 280910 is a 6-digit subheading in the Harmonized System that covers: Diphosphorus pentoxide. Diphosphorus pentoxide, also known as phosphorus pentoxide, is a powerful dehydrating agent and a key intermediate in the production of various phosphorus compounds, making it a specialized but important commodity in international chemical trade. Its primary role is in the synthesis of phosphoric acid, particularly the higher purity grades, and in the manufacture of organic phosphorus compounds, including plasticizers, flame retardants, and certain pharmaceuticals. It is also used as a desiccant in laboratories and industrial processes due to its strong affinity for water. Importers are typically chemical manufacturers and research institutions requiring a potent dehydrating agent or a phosphorus source for synthesis. Exporters are usually countries with established phosphorus chemical industries. Key aspects of its trade involve careful handling and storage due to its extreme reactivity with water, forming phosphoric acid and releasing significant heat. It is corrosive and requires specialized, moisture-proof packaging and transport. Its niche applications ensure a steady, albeit smaller, global trade volume compared to bulk acids, supporting advanced chemical manufacturing and research worldwide.
What products fall under HS code 280910?
Phosphorus pentoxide, diphosphorus pentoxide, P2O5, industrial-grade P2O5, reagent-grade P2O5, phosphorus oxide
What are common misclassifications for HS code 280910?
This code is specific to diphosphorus pentoxide. It might be confused with other phosphorus oxides or even phosphoric acid (280920), but P2O5 is a distinct compound used as a precursor or dehydrating agent, not the acid itself.
Which countries are the top exporters of goods under HS code 280910?
In 2025, the top exporters of HS code 280910 in UN Comtrade data were China ($28M, 67% of world exports), the Netherlands ($6.1M) and India ($5.0M). World exports came to about $41M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 280910?
In 2025, the top importers of HS code 280910 in UN Comtrade data were Spain ($9.0M, 18% of world imports), Germany ($7.9M) and India ($7.8M). World imports came to about $50M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 280910 structured?
HS code 280910 is a 6-digit subheading under the Harmonized System. The first 2 digits (28) identify the chapter, digits 3-4 (09) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 280910?
In Brazil, HS code 280910 is NCM 2809.10.00. The last two digits are 00 because Brazil does not split this HS code further.