Hydrogen, nitrogen, oxygen, carbon dioxide and rare gases; inorganic oxygen compounds of non-metals n.e.c.

CPC v2.1 Code: 3421

About hydrogen, nitrogen, oxygen, carbon dioxide and rare gases; inorganic oxygen compounds of non-metals n.e.c.

cpc code 3421 covers the production and distribution of a wide range of industrial gases, including hydrogen, nitrogen, oxygen, carbon dioxide, and various rare gases. These gases play a crucial role in numerous industries, from manufacturing and healthcare to energy production and scientific research. The global industrial gases market is a multi-billion dollar industry, with growing demand driven by the expansion of end-use sectors and the increasing need for efficient and sustainable production processes.

Production process

The main production techniques for the gases covered under cpc code 3421 involve the separation and purification of air or other gas mixtures. This is typically done through processes such as fractional distillation, pressure swing adsorption, and membrane separation. These methods allow for the efficient extraction and refinement of the desired gases, ensuring high purity levels and consistent quality.

Production inputs

The key inputs required for the production of the gases under cpc code 3421 include air, electricity, and specialized equipment such as compressors, heat exchangers, and distillation columns. Additionally, the industry relies on a skilled workforce with expertise in chemical engineering, process control, and maintenance. The availability of reliable energy sources and access to transportation infrastructure are also important factors in the production and distribution of these industrial gases.

Production outputs

The main outputs of the industry covered by cpc code 3421 are the various industrial gases, including 2411 Manufacture of basic chemicals, 2420 Manufacture of pesticides and other agrochemical products, and 2011 Manufacture of basic pharmaceutical products. These gases are essential inputs for a wide range of industries, from healthcare and food processing to metal fabrication and electronics manufacturing.

Family tree for hydrogen, nitrogen, oxygen, carbon dioxide and rare gases; inorganic oxygen compounds of non-metals n.e.c.

    graph LR
    A["<a href='/classifications/cpc/v2-1/3'>3: Other transportable goods, except metal products, machinery and equipment</a>"]
A --> B["<a href='/classifications/cpc/v2-1/34'>34: Basic chemicals</a>"]
B --> C["<a href='/classifications/cpc/v2-1/342'>342: Basic inorganic chemicals n.e.c.</a>"]
C --> D["<a href='/classifications/cpc/v2-1/3421'>3421: Hydrogen, nitrogen, oxygen, carbon dioxide and rare gases; inorganic oxygen compounds of non-metals n.e.c.</a>"]

    C --> E["<a href='/classifications/cpc/v2-1/3422'>3422: Zinc oxide; zinc peroxide; chromium oxides and hydroxides; manganese oxides; iron oxides and hydroxides; earth colours; cobalt oxides and hydroxides; titanium oxides; lead oxides; red lead and orange lead; inorganic bases n.e.c.; metal oxides, hydroxides and peroxides n.e.c., except of mercury</a>"]
C --> F["<a href='/classifications/cpc/v2-1/3423'>3423: Chemical elements n.e.c.; inorganic acids; inorganic oxygen compounds of boron, silicon and carbon; halogen or sulphur compounds of non-metals; sodium hydroxide; hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides of strontium or barium; aluminium hydroxide; hydrozine and hydroxylamine and their inorganic salts</a>"]
C --> G["<a href='/classifications/cpc/v2-1/3424'>3424: Phosphates of triammonium; salts and peroxysalts of inorganic acids and metals n.e.c.</a>"]
C --> H["<a href='/classifications/cpc/v2-1/3425'>3425: Salts of oxometallic or peroxometallic acids; colloidal precious metals and compounds thereof; inorganic and organic compounds of mercury; other inorganic chemicals n.e.c.; compressed air; amalgams</a>"]
C --> I["<a href='/classifications/cpc/v2-1/3426'>3426: Isotopes n.e.c. and compounds thereof (including heavy water)</a>"]
C --> J["<a href='/classifications/cpc/v2-1/3427'>3427: Cyanides, cyanide oxides and complex cyanides; fulminates, cyanates and thiocyanates; silicates; borates; perborates</a>"]
C --> K["<a href='/classifications/cpc/v2-1/3428'>3428: Hydrogen peroxide; phosphides; carbides; hydrides, nitrides, azides, silicides and borides</a>"]
C --> L["<a href='/classifications/cpc/v2-1/3429'>3429: Compounds of rare earth metals, of yttrium or of scandium</a>"]

    D --> M["<a href='/classifications/cpc/v2-1/34210'>34210: Hydrogen, nitrogen, oxygen, carbon dioxide and rare gases; inorganic oxygen compounds of non-metals n.e.c.</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 level1
class B level2
class C level3
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 level5

  class D 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 D highlight