Oxygen

HS v2017 Code: 280440

About oxygen

HS code 280440 covers the classification of oxygen, a vital element that plays a crucial role in various industries and everyday life. Oxygen is a colorless, odorless, and highly reactive gas that is essential for combustion, respiration, and numerous chemical processes. As a fundamental component of the Earth's atmosphere, oxygen is one of the most abundant elements on the planet and is indispensable for sustaining life.

Production process

Oxygen is primarily produced through the fractional distillation of liquefied air. This process involves cooling and compressing air, then separating the different gases based on their boiling points. Oxygen is then further purified and stored for various applications. In some cases, oxygen can also be produced through the electrolysis of water, where an electric current is used to split water molecules into hydrogen and oxygen.

Production inputs

The main inputs required for the production of oxygen include air, electricity, and specialized equipment such as air separation units, compressors, and cryogenic distillation columns. The production of oxygen also requires a reliable source of electricity and a consistent supply of air, which is the primary raw material.

Production outputs

The primary output of HS code 280440 is pure oxygen gas, which is used in a wide range of industries, including 271121 Propane and 271129 Butanes production, 281410 Anhydrous ammonia, 281511 (Sodium hydroxide (caustic soda)), and 281512 (Potassium hydroxide (caustic potash)) manufacturing, as well as in medical applications, welding, and various chemical processes.

Revisions to 280440

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 280440. The most recent 1 version of this code (280440) is in the HS v2022 system:

This page shows a legacy version of code 280440 ( HS v2017).

Newer versions
Older versions

Family tree for oxygen

    graph LR
    A["<a href='/classifications/hs/v2017/28'>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/v2017/2804'>2804: Hydrogen, rare gases and other non-metals</a>"]
B --> C["<a href='/classifications/hs/v2017/280440'>280440: Oxygen</a>"]

    B --> D["<a href='/classifications/hs/v2017/280410'>280410: Hydrogen</a>"]
B --> E["<a href='/classifications/hs/v2017/280421'>280421: Gases, rare; argon</a>"]
B --> F["<a href='/classifications/hs/v2017/280429'>280429: Gases, rare; other than argon</a>"]
B --> G["<a href='/classifications/hs/v2017/280430'>280430: Nitrogen</a>"]
B --> H["<a href='/classifications/hs/v2017/280450'>280450: Boron; tellurium</a>"]
B --> I["<a href='/classifications/hs/v2017/280461'>280461: Silicon; containing by weight not less than 99.99% of silicon</a>"]
B --> J["<a href='/classifications/hs/v2017/280469'>280469: Silicon; containing by weight less than 99.99% of silicon</a>"]
B --> K["<a href='/classifications/hs/v2017/280470'>280470: Phosphorus</a>"]
B --> L["<a href='/classifications/hs/v2017/280480'>280480: Arsenic</a>"]
B --> M["<a href='/classifications/hs/v2017/280490'>280490: Selenium</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 F level6
class G level6
class H level6
class I level6
class J level6
class K level6
class L level6
class M 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