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

HS v2022 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, this code represents a significant segment of international trade and economic activity.

Production process

The production of aromatic polycarboxylic acids under HS code 291739 typically involves a multi-step process. The starting point is the oxidation of aromatic hydrocarbons, such as benzene or toluene, to form the desired carboxylic acid structures. This is often achieved through the use of strong oxidizing agents and carefully controlled reaction conditions. Further purification and refinement steps may be necessary to obtain the final product, which must meet specific purity and quality standards.

Production inputs

The main inputs required for the production of aromatic polycarboxylic acids under HS code 291739 include aromatic hydrocarbon feedstocks, such as 271011 motor spirit and 271019 other light oils and preparations, as well as various chemical reagents and catalysts. Additionally, specialized production equipment, such as reactors, distillation columns, and purification systems, are essential for the manufacturing process.

Production outputs

The primary outputs of the industry covered by HS code 291739 are a diverse range of aromatic polycarboxylic acids, including trimellitic acid, pyromellitic acid, and various other derivatives. These acids find applications in the production of 390130 Polymers of styrene, in primary forms, 300490 Medicaments consisting of mixed or unmixed products for therapeutic or prophylactic uses, put up in measured doses or in forms or packings for retail sale, and 320417 Synthetic organic colouring matter and preparations based thereon, among other important 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 version):

This page shows the most recent version of code 291739.

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

    graph LR
    A["<a href='/classifications/hs/v2022/29'>29: Organic chemicals</a>"]
A --> B["<a href='/classifications/hs/v2022/2917'>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/v2022/291739'>291739: Acids; aromatic polycarboxylic acids; n.e.c. in item no. 2917.3</a>"]

    B --> D["<a href='/classifications/hs/v2022/291711'>291711: Acids; acyclic polycarboxylic acids; oxalic acid, its salts and esters</a>"]
B --> E["<a href='/classifications/hs/v2022/291712'>291712: Acids; acyclic polycarboxylic acids; adipic acid, its salts and esters</a>"]
B --> F["<a href='/classifications/hs/v2022/291713'>291713: Acids; acyclic polycarboxylic acids; azelaic acid, sebacic acid, their salts and esters</a>"]
B --> G["<a href='/classifications/hs/v2022/291714'>291714: Acids; acyclic polycarboxylic acids; maleic anhydride</a>"]
B --> H["<a href='/classifications/hs/v2022/291719'>291719: Acids; acyclic polycarboxylic acids; n.e.c. in item no. 2917.1</a>"]
B --> I["<a href='/classifications/hs/v2022/291720'>291720: Acids; cyclanic, cyclenic or cycloterpenic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and derivatives</a>"]
B --> J["<a href='/classifications/hs/v2022/291732'>291732: Acids; aromatic polycarboxylic acids; dioctyl orthophthalates</a>"]
B --> K["<a href='/classifications/hs/v2022/291733'>291733: Acids; aromatic polycarboxylic acids; dinonyl or didecyl orthophthalates</a>"]
B --> L["<a href='/classifications/hs/v2022/291734'>291734: Acids; aromatic polycarboxylic acids; other esters of orthophthalic acids</a>"]
B --> M["<a href='/classifications/hs/v2022/291735'>291735: Acids; aromatic polycarboxylic acids; phthalic anhydride</a>"]
B --> N["<a href='/classifications/hs/v2022/291736'>291736: Acids; aromatic polycarboxylic acids; terephthalic acid and its salts</a>"]
B --> O["<a href='/classifications/hs/v2022/291737'>291737: Acids; aromatic polycarboxylic acids; dimethyl terephthalate</a>"]

    

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