Acids; aromatic polycarboxylic acids; dioctyl orthophthalates

HS v2022 Code: 291732

About acids; aromatic polycarboxylic acids; dioctyl orthophthalates

HS code 291732 covers a range of aromatic polycarboxylic acids, including dioctyl orthophthalates. These chemicals play a crucial role in various industries, serving as important raw materials and intermediates. They find applications in the production of plasticizers, dyes, pharmaceuticals, and other specialty chemicals, making them an integral part of the global chemical supply chain.

Production process

The production of the chemicals under HS code 291732 typically involves a multi-step process. The starting point is the oxidation of aromatic hydrocarbons, such as xylene or naphthalene, to form the corresponding polycarboxylic acids. These acids are then further processed, often through esterification reactions, to yield the desired dioctyl orthophthalates and other related compounds.

Production inputs

The main inputs required for the production of the chemicals under HS code 291732 include aromatic hydrocarbons, such as 290243 xylene and 290230 naphthalene, as well as various alcohols and other reagents necessary for the oxidation and esterification reactions. Additionally, specialized production equipment, such as reactors, distillation columns, and purification systems, are essential for the efficient and high-quality manufacture of these chemicals.

Production outputs

The primary outputs of the industry covered by HS code 291732 are dioctyl orthophthalates and other aromatic polycarboxylic acids. These chemicals are widely used as plasticizers in the production of 391810 plastic products, as well as in the manufacture of 320411 dyes, 300410 pharmaceuticals, and various other specialty chemicals. The outputs of this industry serve as crucial inputs for a diverse range of downstream industries, contributing to the overall growth and development of the global economy.

Revisions to 291732

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 291732. The most recent 1 version of this code (291732) is in the HS v2022 system (this version):

This page shows the most recent version of code 291732.

Family tree for acids; aromatic polycarboxylic acids; dioctyl orthophthalates

    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/v2022/291732'>291732: Acids; aromatic polycarboxylic acids; dioctyl orthophthalates</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/v2022/291733'>291733: Acids; aromatic polycarboxylic acids; dinonyl or didecyl orthophthalates</a>"]
B --> K["<a href='/classifications/hs/v2022/291734'>291734: Acids; aromatic polycarboxylic acids; other esters of orthophthalic acids</a>"]
B --> L["<a href='/classifications/hs/v2022/291735'>291735: Acids; aromatic polycarboxylic acids; phthalic anhydride</a>"]
B --> M["<a href='/classifications/hs/v2022/291736'>291736: Acids; aromatic polycarboxylic acids; terephthalic acid and its salts</a>"]
B --> N["<a href='/classifications/hs/v2022/291737'>291737: Acids; aromatic polycarboxylic acids; dimethyl terephthalate</a>"]
B --> O["<a href='/classifications/hs/v2022/291739'>291739: Acids; aromatic polycarboxylic acids; n.e.c. in item no. 2917.3</a>"]

    

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