Sulphuric acid; oleum

HS v2022 Code: 280700

About sulphuric acid; oleum

HS code 280700 covers the production and trade of sulphuric acid and oleum, which are essential chemicals in a wide range of industries. Sulphuric acid is one of the most widely produced industrial chemicals globally, with applications spanning from fertilizer production to metal processing. As a key input for many manufacturing processes, the sulphuric acid industry plays a vital role in supporting economic growth and development across various sectors.

Production process

Sulphuric acid is primarily produced through the contact process, which involves the oxidation of elemental sulfur, natural gas, or other sulfur-containing feedstocks. The process typically consists of four main steps: sulfur burning, gas cleaning, catalytic conversion, and absorption. The resulting sulfuric acid can then be further processed into oleum, a more concentrated form of the chemical.

Production inputs

The main inputs required for the production of sulphuric acid and oleum include elemental sulfur, natural gas, or other sulfur-containing raw materials, as well as specialized equipment such as reaction vessels, heat exchangers, and catalysts. Additionally, the industry relies on a range of supporting infrastructure, including transportation networks, energy sources, and water supply systems.

Production outputs

The primary output of HS code 280700 is sulphuric acid and oleum, which are then consumed by a wide range of downstream industries. These include 310000 Fertilizers, 281000 Inorganic chemicals, 282000 Organic chemicals, and 284000 Metallic salts and peroxysalts, among others. Sulphuric acid is a critical input for the production of various chemicals, minerals, and metals, making it an essential component of many global supply chains.

Revisions to 280700

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 280700. The most recent 1 version of this code (280700) is in the HS v2022 system (this version):

This page shows the most recent version of code 280700.

Older versions

Family tree for sulphuric acid; oleum

    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/v2022/2807'>2807: Sulphuric acid; oleum</a>"]
B --> C["<a href='/classifications/hs/v2022/280700'>280700: Sulphuric acid; oleum</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 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