Chlorosulphuric acid
HS v2022 Code: 280620
About chlorosulphuric acid
HS code 280620 covers chlorosulphuric acid, a highly corrosive and reactive chemical compound with a wide range of industrial applications. As a key intermediate in the production of various sulfur-containing compounds, chlorosulphuric acid plays a vital role in the chemical industry, contributing to the manufacture of pharmaceuticals, dyes, and agricultural chemicals, among other important products. Its significance extends across multiple sectors, making it an essential component in the broader global economy.
Production process
Chlorosulphuric acid is typically produced through the reaction of sulfur trioxide (SO3) with chlorine gas (Cl2). This process involves the controlled introduction of chlorine into a stream of sulfur trioxide, resulting in the formation of the chlorosulphuric acid compound. The reaction is carefully monitored and controlled to ensure the desired purity and yield of the final product.
Production inputs
The primary inputs for the production of chlorosulphuric acid include sulfur trioxide, chlorine gas, and specialized equipment such as reaction vessels, distillation columns, and storage tanks. Additionally, the process may require various auxiliary materials, such as catalysts, cooling systems, and safety equipment to handle the highly corrosive nature of the chemicals involved.
Production outputs
The primary output of HS code 280620 is chlorosulphuric acid, which is then used as a key intermediate in the production of a wide range of other chemical compounds. These include 280110 Chlorine, 280120 Fluorine, 280130 Bromine, 280200 Sulphur, sublimed or precipitated; colloidal sulphur, and 280700 Sulphuric acid; oleum, among others. The versatility of chlorosulphuric acid makes it an essential component in the manufacturing of various pharmaceuticals, dyes, pesticides, and other specialty chemicals.
Revisions to 280620
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 280620. The most recent 1 version of this code (280620) is in the HS v2022 system (this version):
This page shows the most recent version of code 280620.
Older versions
- HS v2017:
Family tree for chlorosulphuric acid
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/v2022/2806'>2806: Hydrogen chloride (hydrochloric acid); chlorosulphuric acid</a>"] B --> C["<a href='/classifications/hs/v2022/280620'>280620: Chlorosulphuric acid</a>"] B --> D["<a href='/classifications/hs/v2022/280610'>280610: Hydrogen chloride (hydrochloric acid)</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 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