Aluminium hydroxide

HS v2022 Code: 281830

About aluminium hydroxide

HS code 281830 covers aluminium hydroxide, a versatile chemical compound with a wide range of industrial applications. Aluminium hydroxide is a key raw material in the production of aluminium metal, as well as being used in the manufacture of various other products such as fire retardants, fillers, and water treatment chemicals. As a result, this industry plays an important role in supporting a diverse range of downstream sectors, contributing to the broader economy.

Production process

Aluminium hydroxide is typically produced through the Bayer process, which involves the extraction of alumina (aluminium oxide) from bauxite ore. The ore is crushed, ground, and then treated with a hot sodium hydroxide solution, which dissolves the alumina. The solution is then cooled, allowing the aluminium hydroxide to precipitate out. The aluminium hydroxide is then filtered, washed, and calcined to produce the final product.

Production inputs

The main inputs required for the production of aluminium hydroxide include bauxite ore, sodium hydroxide, and energy sources such as electricity or natural gas to power the production process. Additionally, specialized equipment such as crushers, grinders, and precipitation tanks are necessary for the various stages of the Bayer process.

Production outputs

The primary output of HS code 281830 is aluminium hydroxide, which is then used as a raw material in the production of 280120 Aluminium, as well as in the manufacture of other products such as 381210 Prepared rubber accelerators, 382490 Chemical products and preparations of the chemical or allied industries, and 382530 Non-refractory mortars and concretes. The aluminium hydroxide industry supports a wide range of downstream industries, contributing to the overall economic activity.

Revisions to 281830

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 281830. The most recent 1 version of this code (281830) is in the HS v2022 system (this version):

This page shows the most recent version of code 281830.

Older versions

Family tree for aluminium hydroxide

    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/v2022/2818'>2818: Aluminium oxide (including artificial corundum); aluminium hydroxide</a>"]
B --> C["<a href='/classifications/hs/v2022/281830'>281830: Aluminium hydroxide</a>"]

    B --> D["<a href='/classifications/hs/v2022/281810'>281810: Aluminium oxide; artificial corundum</a>"]
B --> E["<a href='/classifications/hs/v2022/281820'>281820: Aluminium oxide; other than artificial corundum</a>"]

    

    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    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 E 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