Acids; aromatic polycarboxylic acids; dioctyl orthophthalates

HS v2017 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 produce the desired dioctyl orthophthalates and other derivatives.

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 manufacturing process.

Production outputs

The chemicals classified under HS code 291732 are widely used as intermediates in the production of a variety of downstream products. The dioctyl orthophthalates, for example, are commonly used as plasticizers in the 392010 plastic products industry, while the aromatic polycarboxylic acids find applications in the 300 pharmaceutical and 320 dye sectors. These chemicals also serve as building blocks for the synthesis of other specialty chemicals, making them an important part of the global chemical supply chain.

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 page shows a legacy version of code 291732 ( HS v2017).

Older versions

Family tree for acids; aromatic polycarboxylic acids; dioctyl orthophthalates

    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/v2017/291732'>291732: Acids; aromatic polycarboxylic acids; dioctyl orthophthalates</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/v2017/291733'>291733: Acids; aromatic polycarboxylic acids; dinonyl or didecyl orthophthalates</a>"]
B --> K["<a href='/classifications/hs/v2017/291734'>291734: Acids; aromatic polycarboxylic acids; other esters of orthophthalic acids</a>"]
B --> L["<a href='/classifications/hs/v2017/291735'>291735: Acids; aromatic polycarboxylic acids; phthalic anhydride</a>"]
B --> M["<a href='/classifications/hs/v2017/291736'>291736: Acids; aromatic polycarboxylic acids; terephthalic acid and its salts</a>"]
B --> N["<a href='/classifications/hs/v2017/291737'>291737: Acids; aromatic polycarboxylic acids; dimethyl terephthalate</a>"]
B --> O["<a href='/classifications/hs/v2017/291739'>291739: Acids; aromatic polycarboxylic acids; n.e.c. in item no. 2917.3</a>"]

    

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