-Phosphoric acid and polyphosphoric acids

HS v2012 Code: 280920

Revisions to 280920

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 280920. The most recent 1 version of this code (280920) is in the HS v2022 system:

This page shows a legacy version of code 280920 ( HS v2012).

Family tree for -phosphoric acid and polyphosphoric acids

    graph LR
    A["<a href='/classifications/hs/v2012/28'>28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes</a>"]
A --> B["<a href='/classifications/hs/v2012/2809'>2809: Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined.</a>"]
B --> C["<a href='/classifications/hs/v2012/280920'>280920: -Phosphoric acid and polyphosphoric acids</a>"]

    B --> D["<a href='/classifications/hs/v2012/280910'>280910: -Diphosphorus pentaoxide</a>"]

    

    %% Color coordination by level

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    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    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
class B level4
class C level6
class D level6

  class C highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class C highlight