Thionyl chloride

HS v2022 Code: 281217

About thionyl chloride

HS code 281217 covers the classification of thionyl chloride, a widely used industrial chemical with a diverse range of applications. Thionyl chloride is an important compound in the production of various pharmaceuticals, agrochemicals, and specialty chemicals. It plays a crucial role in the broader chemical industry, serving as a key intermediate for the synthesis of a wide array of products that are essential to modern society.

Production process

Thionyl chloride is typically produced through the reaction of sulfur dioxide and chlorine gas. This process involves the direct chlorination of sulfur dioxide, which yields thionyl chloride as the primary product. The reaction is carried out under controlled temperature and pressure conditions to optimize the yield and purity of the final product.

Production inputs

The main inputs required for the production of thionyl chloride include sulfur dioxide, chlorine gas, and various catalysts or reagents used to facilitate the chemical reaction. Additionally, specialized equipment such as reaction vessels, distillation columns, and purification systems are necessary to ensure the efficient and high-quality production of thionyl chloride.

Production outputs

Thionyl chloride is a versatile compound that finds application in the synthesis of a wide range of chemicals, including 290319 organic compounds, 290490 other organic-inorganic compounds, and 290490 other organic-inorganic compounds. It is commonly used as a reagent in the production of pharmaceuticals, agrochemicals, and various specialty chemicals, making it an essential input for numerous downstream industries.

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 version):

This page shows the most recent version of code 281217.

Older versions

Family tree for thionyl chloride

    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/v2022/2812'>2812: Halides and halide oxides of non-metals</a>"]
B --> C["<a href='/classifications/hs/v2022/281217'>281217: Thionyl chloride</a>"]

    B --> D["<a href='/classifications/hs/v2022/281211'>281211: Carbonyl dichloride (phosgene)</a>"]
B --> E["<a href='/classifications/hs/v2022/281212'>281212: Phosphorus oxychloride</a>"]
B --> F["<a href='/classifications/hs/v2022/281213'>281213: Phosphorus trichloride</a>"]
B --> G["<a href='/classifications/hs/v2022/281214'>281214: Phosphorus pentachloride</a>"]
B --> H["<a href='/classifications/hs/v2022/281215'>281215: Sulphur monochloride</a>"]
B --> I["<a href='/classifications/hs/v2022/281216'>281216: Sulphur dichloride</a>"]
B --> J["<a href='/classifications/hs/v2022/281219'>281219: Arsenic trichloride and other chlorides and chloride oxides, n.e.c. in item no. 2812</a>"]
B --> K["<a href='/classifications/hs/v2022/281290'>281290: Halides and halide oxides of non-metals; excluding chloride</a>"]

    

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    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
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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 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