HSN code 2809 — DIPHOSPHORUS PENTAOXIDE
HSN · heading5%DIPHOSPHORUS PENTAOXIDE; PHOSPHORIC ACID; POLYPHOSPHORIC ACIDS, WHETHER OR NOT CHEMICALLY DEFINED
This code covers diphosphorus pentaoxide (phosphorus pentoxide), phosphoric acid in all its forms, and polyphosphoric acids regardless of their chemical definition. These are key phosphorus-based chemicals used in fertilizers, detergents, food processing, and industrial applications.
current gst rate
| igst | cgst | sgst | condition |
|---|---|---|---|
| 5% | 2.5% | 2.5% | Sch I S.No 216 |
source: 9/2025-Central Tax (Rate) · effective 2025-09-22 · all codes at 5%
gst calculator — pre-filled with this rate
products commonly classified here
concentrated phosphoric acidfood-grade phosphoric acidmetaphosphoric acidorthophosphoric acidP2O5phosphoric acidphosphorus pentoxidepolyphosphoric acidpyrophosphoric acidtechnical phosphoric acid
more specific codes
sibling codes
- 2801FLUORINE, CHLORINE, BROMINE AND IODINE
- 2802SULPHUR, SUBLIMED OR PRECIPITATED; COLLOIDAL SULPHUR
- 2803CARBON (CARBON BLACKS AND OTHER FORMS OF CARBON NOT ELSEWHERE SPECIFIED OR INCLUDED)
- 2804HYDROGEN, RARE GASES AND OTHER NON-METALS
- 2805ALKALI OR ALKALINE-EARTH METALS, RARE-EARTH METALS,SCANDIUM AND YTTRIUM, WHETHER OR NOT INTERMI
- 2806HHYDROGEN CHLORIDE (HYDROCHLORIC ACID), CHLOROSULPHURIC ACID
- 2807SULPHURIC ACID; OLEUM
- 2808NITRIC ACID; SULPHONITRIC ACIDS
- 2810OXIDES OF BORON, BORIC ACIDS
- 2811OTHER INORGANIC ACIDS AND OTHER INORGANIC OXYGEN COMPOUNDS OF NON-METALS
- 2812HALIDES AND HALIDE OXIDES OF NON-METALS
- 2813SULPHIDES OF NON-METALS; COMMERCIAL PHOSPHORUS TRISULPHIDE
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compiled from official sources · not tax advice · verify with your tax advisor before filing