Thionyl chloride

HS v2017 Code: 281217

About thionyl chloride

HS code 281217 covers thionyl chloride, a widely used chemical compound with diverse industrial applications. As a key intermediate in the production of various pharmaceuticals, agrochemicals, and specialty chemicals, thionyl chloride plays a vital role in the global chemical industry. Its importance extends across sectors, contributing to the development of essential products that impact the broader economy.

Production process

Thionyl chloride is typically produced through the reaction of sulfur dioxide and chlorine gas. This process involves the controlled oxidation of sulfur dioxide, followed by the subsequent chlorination of the resulting sulfur trioxide. The reaction is carefully monitored and optimized to ensure consistent product quality and yield.

Production inputs

The primary inputs for the production of thionyl chloride include sulfur dioxide, chlorine gas, and various catalysts or reagents used to facilitate the chemical reactions. Additionally, specialized equipment such as reactors, distillation columns, and storage tanks are essential for the efficient and safe manufacture of this chemical compound.

Production outputs

Thionyl chloride is a versatile chemical that finds application in the production of a wide range of other chemicals and materials. It is commonly used as a chlorinating agent in the synthesis of pharmaceuticals, such as 300410 Medicamentsand 300390 Medicaments. Additionally, thionyl chloride is employed in the manufacture of agrochemicals, including 380810 Insecticides, 380820 Fungicides, and 380830 Herbicides. The chemical is also utilized in the production of specialty chemicals, such as 290531 Ethylene glycoland 290539 Other glycerol esters.

Revisions to 281217

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 281217. The most recent 1 version of this code (281217) is in the HS v2022 system:

This page shows a legacy version of code 281217 ( HS v2017).

Newer versions

Family tree for thionyl chloride

    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/v2017/2812'>2812: Halides and halide oxides of non-metals</a>"]
B --> C["<a href='/classifications/hs/v2017/281217'>281217: Thionyl chloride</a>"]

    B --> D["<a href='/classifications/hs/v2017/281211'>281211: Carbonyl dichloride (phosgene)</a>"]
B --> E["<a href='/classifications/hs/v2017/281212'>281212: Phosphorus oxychloride</a>"]
B --> F["<a href='/classifications/hs/v2017/281213'>281213: Phosphorus trichloride</a>"]
B --> G["<a href='/classifications/hs/v2017/281214'>281214: Phosphorus pentachloride</a>"]
B --> H["<a href='/classifications/hs/v2017/281215'>281215: Sulphur monochloride</a>"]
B --> I["<a href='/classifications/hs/v2017/281216'>281216: Sulphur dichloride</a>"]
B --> J["<a href='/classifications/hs/v2017/281219'>281219: Arsenic trichloride and other chlorides and chloride oxides, n.e.c. in item no. 2812</a>"]
B --> K["<a href='/classifications/hs/v2017/281290'>281290: Halides and halide oxides of non-metals; excluding chloride</a>"]

    

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class C level6
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class E level6
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class G level6
class H level6
class I level6
class J level6
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  %% class C highlight