Cellulose nitrates (including collodions); in primary forms

HS v2022 Code: 391220

About cellulose nitrates (including collodions); in primary forms

HS code 391220 covers the classification of cellulose nitrates, including collodions, in their primary forms. Cellulose nitrates are a type of synthetic polymer with a wide range of industrial applications, from lacquers and explosives to photographic films and coatings. This industry plays a crucial role in the broader chemical and manufacturing sectors, providing essential materials for a variety of downstream industries.

Production process

The production of cellulose nitrates typically involves the nitration of cellulose, a natural polymer derived from plant materials. This process involves treating cellulose with a mixture of nitric and sulfuric acids, which replaces some of the hydroxyl groups in the cellulose structure with nitrate groups. The resulting cellulose nitrate is then purified and processed into its primary forms, such as powders, granules, or viscous solutions.

Production inputs

The main inputs required for the production of cellulose nitrates include cellulose, nitric acid, sulfuric acid, and various solvents and additives. Specialized production equipment, such as reactors, filtration systems, and drying units, are also essential for the manufacturing process. Additionally, the industry relies on a skilled workforce with expertise in chemical processing and quality control.

Production outputs

Cellulose nitrates produced under HS code 391220 have a wide range of applications, including the manufacture of 391231 Cellulose acetates, 391239 Cellulose ethers, and 391290 Other cellulose derivatives. These materials are used in the production of lacquers, paints, coatings, explosives, photographic films, and various other products. The outputs of this industry are crucial inputs for a diverse range of downstream industries, contributing to the overall economic activity.

Revisions to 391220

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 391220. The most recent 1 version of this code (391220) is in the HS v2022 system (this version):

This page shows the most recent version of code 391220.

Family tree for cellulose nitrates (including collodions); in primary forms

    graph LR
    A["<a href='/classifications/hs/v2022/39'>39: Plastics and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2022/3912'>3912: Cellulose and its chemical derivatives, n.e.c. or included, in primary forms</a>"]
B --> C["<a href='/classifications/hs/v2022/391220'>391220: Cellulose nitrates (including collodions); in primary forms</a>"]

    B --> D["<a href='/classifications/hs/v2022/391211'>391211: Cellulose acetates; non-plasticised, in primary forms</a>"]
B --> E["<a href='/classifications/hs/v2022/391212'>391212: Cellulose acetates; plasticised, in primary forms</a>"]
B --> F["<a href='/classifications/hs/v2022/391231'>391231: Cellulose ethers; carboxymethylcellulose and its salts, in primary forms</a>"]
B --> G["<a href='/classifications/hs/v2022/391239'>391239: Cellulose ethers; (other than carboxymethylcellulose and its salts), in primary forms</a>"]
B --> H["<a href='/classifications/hs/v2022/391290'>391290: Cellulose and its chemical derivatives; n.e.c. in item no. 3912, in primary forms</a>"]

    

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