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

HS v2022 Code: 2809

Chapter	Heading	Sub-heading
28	09	n/a

Code	2809
Version	HS v2022
Hierarchy Level	4
Datasource	WCO
Chapter	28

Ancestor Codes: Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes

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

Child Codes: Diphosphorus pentoxide; Phosphoric acid and polyphosphoric acids

Sibling Codes (Nearest 5): Hydrogen chloride (hydrochloric acid); chlorosulphuric acid; Sulphuric acid; oleum; Nitric acid; sulphonitric acids; Oxides of boron; boric acids; Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810

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

HS code 2809 covers a group of essential inorganic chemicals that play a vital role in various industries. These substances, including diphosphorus pentaoxide, phosphoric acid, and polyphosphoric acids, are widely used as raw materials, intermediates, and catalysts in the production of fertilizers, detergents, food additives, and a range of other products. Their importance extends across sectors such as agriculture, manufacturing, and pharmaceuticals, making them a crucial component of the global economy.

Production process

The production of the chemicals under HS code 2809 typically involves a series of chemical reactions and purification processes. Diphosphorus pentaoxide is commonly produced by the combustion of white phosphorus in air, while phosphoric acid is often manufactured through the reaction of phosphate rock with sulfuric acid. Polyphosphoric acids can be synthesized by the dehydration of phosphoric acid at high temperatures.

Production inputs

The main inputs required for the production of the substances covered by HS code 2809 include phosphate rock, sulfuric acid, and various energy sources, such as electricity or natural gas, to power the manufacturing processes. Additionally, specialized equipment, such as reactors, distillation columns, and filtration systems, are necessary to ensure the efficient and safe production of these chemicals.

Production outputs

The outputs of the industries under HS code 2809 are primarily used as raw materials or intermediates in the production of a wide range of products. Diphosphorus pentaoxide and phosphoric acid are commonly used in the manufacture of 3105 Mineral or chemical fertilizers, nitrogenous, 3102 Mineral or chemical fertilizers, nitrogenous, and 2835 (Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined). Polyphosphoric acids find applications in the production of detergents, food additives, and various industrial chemicals.

Family tree for diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined

    graph LR
    A["<a href='/classifications/hs/v2022/28'>28: Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes</a>"]
A --> B["<a href='/classifications/hs/v2022/2809'>2809: Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined</a>"]

    A --> C["<a href='/classifications/hs/v2022/2801'>2801: Fluorine, chlorine, bromine and iodine</a>"]
A --> D["<a href='/classifications/hs/v2022/2802'>2802: Sulphur; sublimed or precipitated, colloidal sulphur</a>"]
A --> E["<a href='/classifications/hs/v2022/2803'>2803: Carbon; carbon blacks and other forms of carbon n.e.c.</a>"]
A --> F["<a href='/classifications/hs/v2022/2804'>2804: Hydrogen, rare gases and other non-metals</a>"]
A --> G["<a href='/classifications/hs/v2022/2805'>2805: Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury</a>"]
A --> H["<a href='/classifications/hs/v2022/2806'>2806: Hydrogen chloride (hydrochloric acid); chlorosulphuric acid</a>"]
A --> I["<a href='/classifications/hs/v2022/2807'>2807: Sulphuric acid; oleum</a>"]
A --> J["<a href='/classifications/hs/v2022/2808'>2808: Nitric acid; sulphonitric acids</a>"]
A --> K["<a href='/classifications/hs/v2022/2810'>2810: Oxides of boron; boric acids</a>"]
A --> L["<a href='/classifications/hs/v2022/2811'>2811: Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810</a>"]
A --> M["<a href='/classifications/hs/v2022/2812'>2812: Halides and halide oxides of non-metals</a>"]
A --> N["<a href='/classifications/hs/v2022/2813'>2813: Sulphides of non-metals; commercial phosphorus trisulphide</a>"]
A --> O["<a href='/classifications/hs/v2022/2814'>2814: Ammonia; anhydrous or in aqueous solution</a>"]
A --> P["<a href='/classifications/hs/v2022/2815'>2815: Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium</a>"]
A --> Q["<a href='/classifications/hs/v2022/2816'>2816: Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides of strontium or barium</a>"]
A --> R["<a href='/classifications/hs/v2022/2817'>2817: Zinc; oxide and peroxide</a>"]
A --> S["<a href='/classifications/hs/v2022/2818'>2818: Aluminium oxide (including artificial corundum); aluminium hydroxide</a>"]
A --> T["<a href='/classifications/hs/v2022/2819'>2819: Chromium oxides and hydroxides</a>"]
A --> U["<a href='/classifications/hs/v2022/2820'>2820: Manganese oxides</a>"]
A --> V["<a href='/classifications/hs/v2022/2821'>2821: Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2o3</a>"]
A --> W["<a href='/classifications/hs/v2022/2822'>2822: Cobalt oxides and hydroxides; commercial cobalt oxides</a>"]
A --> X["<a href='/classifications/hs/v2022/2823'>2823: Titanium oxides</a>"]
A --> Y["<a href='/classifications/hs/v2022/2824'>2824: Lead oxides; red lead and orange lead</a>"]
A --> Z["<a href='/classifications/hs/v2022/2825'>2825: Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides</a>"]
A --> BA["<a href='/classifications/hs/v2022/2826'>2826: Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts</a>"]
A --> BB["<a href='/classifications/hs/v2022/2827'>2827: Chlorides; chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides</a>"]
A --> BC["<a href='/classifications/hs/v2022/2828'>2828: Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites</a>"]
A --> BD["<a href='/classifications/hs/v2022/2829'>2829: Chlorates and perchlorates; bromates and perbromates; iodates and periodates</a>"]
A --> BE["<a href='/classifications/hs/v2022/2830'>2830: Sulphides; polysulphides whether or not chemically defined</a>"]
A --> BF["<a href='/classifications/hs/v2022/2831'>2831: Dithionites and sulphoxylates</a>"]
A --> BG["<a href='/classifications/hs/v2022/2832'>2832: Sulphites; thiosulphates</a>"]
A --> BH["<a href='/classifications/hs/v2022/2833'>2833: Sulphates; alums; peroxosulphates (persulphates)</a>"]
A --> BI["<a href='/classifications/hs/v2022/2834'>2834: Nitrites; nitrates</a>"]
A --> BJ["<a href='/classifications/hs/v2022/2835'>2835: Phosphinates (hypophosphites), phosphonates (phosphites), and phosphates; and polyphosphates, whether or not chemically defined</a>"]
A --> BK["<a href='/classifications/hs/v2022/2836'>2836: Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate</a>"]
A --> BL["<a href='/classifications/hs/v2022/2837'>2837: Cyanides, cyanide oxides and complex cyanides</a>"]
A --> BM["<a href='/classifications/hs/v2022/2839'>2839: Silicates; commercial alkali metal silicates</a>"]
A --> BN["<a href='/classifications/hs/v2022/2840'>2840: Borates; peroxoborates (perborates)</a>"]
A --> BO["<a href='/classifications/hs/v2022/2841'>2841: Salts of oxometallic or peroxometallic acids</a>"]
A --> BP["<a href='/classifications/hs/v2022/2842'>2842: Salts of inorganic acids or peroxoacids, n.e.c. including aluminosilicates whether or not chemically defined, but excluding azides</a>"]
A --> BQ["<a href='/classifications/hs/v2022/2843'>2843: Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals</a>"]
A --> BR["<a href='/classifications/hs/v2022/2844'>2844: Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes); and their compounds; mixtures and residues containing these products</a>"]
A --> BS["<a href='/classifications/hs/v2022/2845'>2845: Isotopes other than those of heading no. 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined</a>"]
A --> BT["<a href='/classifications/hs/v2022/2846'>2846: Compounds, inorganic or organic, of rare-earth metals; of yttrium or of scandium or of mixtures of these metals</a>"]
A --> BU["<a href='/classifications/hs/v2022/2847'>2847: Hydrogen peroxide; whether or not solidified with urea</a>"]
A --> BV["<a href='/classifications/hs/v2022/2849'>2849: Carbides, whether or not chemically defined</a>"]
A --> BW["<a href='/classifications/hs/v2022/2850'>2850: Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading no. 2849</a>"]
A --> BX["<a href='/classifications/hs/v2022/2852'>2852: Inorganic or organic compounds of mercury, excluding amalgams, whether or not chemically defined</a>"]
A --> BY["<a href='/classifications/hs/v2022/2853'>2853: Phosphides, chemically defined or not, not ferrophosphorus; other inorganic compounds n.e.c. (including distilled, conductivity water and water of like purity); liquid air, rare gases removed or not; compressed air; amalgams, not precious metal amalgams</a>"]

    B --> BZ["<a href='/classifications/hs/v2022/280910'>280910: Diphosphorus pentoxide</a>"]
B --> CA["<a href='/classifications/hs/v2022/280920'>280920: Phosphoric acid and polyphosphoric acids</a>"]


    %% Color coordination by level

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    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
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class C level4
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level4
class M level4
class N level4
class O level4
class P level4
class Q level4
class R level4
class S level4
class T level4
class U level4
class V level4
class W level4
class X level4
class Y level4
class Z level4
class BA level4
class BB level4
class BC level4
class BD level4
class BE level4
class BF level4
class BG level4
class BH level4
class BI level4
class BJ level4
class BK level4
class BL level4
class BM level4
class BN level4
class BO level4
class BP level4
class BQ level4
class BR level4
class BS level4
class BT level4
class BU level4
class BV level4
class BW level4
class BX level4
class BY level4
class BZ level6
class CA level6

  class B highlight

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