Acids; aromatic polycarboxylic acids; n.e.c. in item no. 2917.3

HS v2017 Code: 291739

About acids; aromatic polycarboxylic acids; n.e.c. in item no. 2917.3

HS code 291739 covers a diverse range of aromatic polycarboxylic acids, which are essential chemical compounds used in various industries. These acids play a crucial role in the production of plastics, pharmaceuticals, dyes, and other important materials. As a key component of the broader chemical industry, the products under this code contribute significantly to the global economy and support the development of numerous downstream sectors.

Production process

The production of aromatic polycarboxylic acids typically involves a multi-step process. The starting point is the oxidation of aromatic hydrocarbons, such as benzene or toluene, using strong oxidizing agents like nitric acid or potassium permanganate. This process generates the desired polycarboxylic acids, which are then purified and refined to meet specific quality standards.

Production inputs

The main inputs required for the production of aromatic polycarboxylic acids include aromatic hydrocarbons, oxidizing agents, and various solvents and catalysts. Additionally, specialized equipment such as reactors, distillation columns, and filtration systems are necessary to ensure efficient and high-quality production. The availability of these raw materials and technological resources is crucial for the industry's competitiveness and growth.

Production outputs

The aromatic polycarboxylic acids produced under HS code 291739 have a wide range of applications. They are used as intermediates in the manufacture of 292410 phthalic anhydride, 291736 trimellitic anhydride, and other important chemicals. These acids also find use in the production of plasticizers, dyes, and pharmaceutical ingredients. The outputs from this industry are often consumed by 390690 other acrylic polymers, 390410 polyvinyl chloride, and 300490 medicaments, among other industries.

Revisions to 291739

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 291739. The most recent 1 version of this code (291739) is in the HS v2022 system:

This page shows a legacy version of code 291739 ( HS v2017).

Older versions

Family tree for acids; aromatic polycarboxylic acids; n.e.c. in item no. 2917.3

    graph LR
    A["<a href='/classifications/hs/v2017/29'>29: Organic chemicals</a>"]
A --> B["<a href='/classifications/hs/v2017/2917'>2917: Acids; polycarboxylic acids, their anhydrides, halides, peroxides and peroxy-acids; their halogenated, sulphonated, nitrated or nitrosated derivatives</a>"]
B --> C["<a href='/classifications/hs/v2017/291739'>291739: Acids; aromatic polycarboxylic acids; n.e.c. in item no. 2917.3</a>"]

    B --> D["<a href='/classifications/hs/v2017/291711'>291711: Acids; acyclic polycarboxylic acids; oxalic acid, its salts and esters</a>"]
B --> E["<a href='/classifications/hs/v2017/291712'>291712: Acids; acyclic polycarboxylic acids; adipic acid, its salts and esters</a>"]
B --> F["<a href='/classifications/hs/v2017/291713'>291713: Acids; acyclic polycarboxylic acids; azelaic acid, sebacic acid, their salts and esters</a>"]
B --> G["<a href='/classifications/hs/v2017/291714'>291714: Acids; acyclic polycarboxylic acids; maleic anhydride</a>"]
B --> H["<a href='/classifications/hs/v2017/291719'>291719: Acids; acyclic polycarboxylic acids; n.e.c. in item no. 2917.1</a>"]
B --> I["<a href='/classifications/hs/v2017/291720'>291720: Acids; cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and derivatives</a>"]
B --> J["<a href='/classifications/hs/v2017/291732'>291732: Acids; aromatic polycarboxylic acids; dioctyl orthophthalates</a>"]
B --> K["<a href='/classifications/hs/v2017/291733'>291733: Acids; aromatic polycarboxylic acids; dinonyl or didecyl orthophthalates</a>"]
B --> L["<a href='/classifications/hs/v2017/291734'>291734: Acids; aromatic polycarboxylic acids; other esters of orthophthalic acids</a>"]
B --> M["<a href='/classifications/hs/v2017/291735'>291735: Acids; aromatic polycarboxylic acids; phthalic anhydride</a>"]
B --> N["<a href='/classifications/hs/v2017/291736'>291736: Acids; aromatic polycarboxylic acids; terephthalic acid and its salts</a>"]
B --> O["<a href='/classifications/hs/v2017/291737'>291737: Acids; aromatic polycarboxylic acids; dimethyl terephthalate</a>"]

    

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