Chromium trioxide

HS v2017 Code: 281910

About chromium trioxide

HS code 281910 covers chromium trioxide, a critical inorganic chemical compound with a wide range of industrial applications. As a key raw material, chromium trioxide plays a vital role in various manufacturing processes, contributing to the broader chemical and metal processing industries. Its importance extends across sectors, making it an integral component of the global trade and economic landscape.

Production process

Chromium trioxide is primarily produced through the oxidation of chromium metal or chromium compounds. The most common production method involves the reaction of chromium ore with sodium carbonate and oxygen, followed by the extraction and purification of the chromium trioxide. This process ensures the consistent quality and purity of the final product, meeting the stringent requirements of its diverse end-uses.

Production inputs

The production of chromium trioxide relies on several key inputs, including chromium ore, sodium carbonate, and various energy sources. Specialized equipment, such as reaction vessels, filtration systems, and drying units, are also essential for the efficient and safe manufacture of this chemical compound. Additionally, the industry requires a skilled workforce capable of operating the production facilities and maintaining quality control measures.

Production outputs

Chromium trioxide finds application in a wide range of industries, including 282490 Chemical products n.e.c., 251120 Paints and varnishes, and 251110 Pigments and preparations. It is used as a pigment, a corrosion inhibitor, and a key ingredient in various chemical processes. The output of chromium trioxide is often consumed by industries producing 281910 Chromium compounds, 241110 Industrial gases, and 252010 Pesticides and other agrochemical products.

Revisions to 281910

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 281910. The most recent 1 version of this code (281910) is in the HS v2022 system:

This page shows a legacy version of code 281910 ( HS v2017).

Newer versions
Older versions

Family tree for chromium trioxide

    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/v2017/2819'>2819: Chromium oxides and hydroxides</a>"]
B --> C["<a href='/classifications/hs/v2017/281910'>281910: Chromium trioxide</a>"]

    B --> D["<a href='/classifications/hs/v2017/281990'>281990: Chromium oxides and hydroxides; excluding chromium trioxide</a>"]

    

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