Carbonyl dichloride (phosgene)

HS v2022 Code: 281211

About carbonyl dichloride (phosgene)

HS code 281211 covers the classification of carbonyl dichloride, more commonly known as phosgene. Phosgene is a highly reactive and toxic chemical compound that has a wide range of industrial applications, particularly in the production of various organic compounds and pharmaceuticals. As a key intermediate in the chemical industry, phosgene plays a crucial role in the global economy, enabling the manufacture of a diverse array of essential products.

Production process

Phosgene is typically produced through the reaction of carbon monoxide and chlorine gas. This process, known as the 'phosgene synthesis', involves carefully controlling the temperature and pressure to ensure the efficient conversion of the reactants into the desired product. The resulting phosgene is then purified and stored for further use in various chemical processes.

Production inputs

The primary inputs required for the production of phosgene include carbon monoxide, chlorine gas, and specialized equipment such as reaction vessels, distillation columns, and storage tanks. Additionally, the process may require the use of catalysts, solvents, and other auxiliary materials to optimize the reaction and purification steps.

Production outputs

Phosgene is a versatile chemical that serves as a key intermediate in the production of a wide range of organic compounds, including 290110 isocyanates, 290420 pesticides, and various pharmaceutical ingredients. The output of phosgene is often consumed by industries classified under other HS codes, such as 290920 epoxides, alcohols, and their halogenated, sulfonated, nitrated or nitrosated derivatives and 300490 medicaments.

Revisions to 281211

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 281211. The most recent 1 version of this code (281211) is in the HS v2022 system (this version):

This page shows the most recent version of code 281211.

Family tree for carbonyl dichloride (phosgene)

    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/v2022/281211'>281211: Carbonyl dichloride (phosgene)</a>"]

    B --> D["<a href='/classifications/hs/v2022/281212'>281212: Phosphorus oxychloride</a>"]
B --> E["<a href='/classifications/hs/v2022/281213'>281213: Phosphorus trichloride</a>"]
B --> F["<a href='/classifications/hs/v2022/281214'>281214: Phosphorus pentachloride</a>"]
B --> G["<a href='/classifications/hs/v2022/281215'>281215: Sulphur monochloride</a>"]
B --> H["<a href='/classifications/hs/v2022/281216'>281216: Sulphur dichloride</a>"]
B --> I["<a href='/classifications/hs/v2022/281217'>281217: Thionyl chloride</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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  %% Apply classes
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class B level4
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