Alcohols; polyhydric, pentaerythritol

HS v2017 Code: 290542

About alcohols; polyhydric, pentaerythritol

HS code 290542 covers the classification of polyhydric alcohols, specifically pentaerythritol. This class of organic compounds plays a vital role in various industries, including the production of alkyd resins, lubricants, and explosives. As a key intermediate in the chemical supply chain, pentaerythritol and its derivatives are essential for the manufacture of a wide range of consumer and industrial products, making it an important component of the broader chemical industry.

Production process

Pentaerythritol is typically produced through the condensation reaction of formaldehyde and acetaldehyde, followed by hydrogenation. This process involves the initial formation of 2,2-bis(hydroxymethyl)propanal, which is then reduced to pentaerythritol using hydrogen gas and a suitable catalyst. The specific reaction conditions, such as temperature, pressure, and the choice of catalyst, can be optimized to improve yield and purity.

Production inputs

The primary raw materials required for the production of pentaerythritol are formaldehyde and acetaldehyde. These aldehydes are typically obtained from the petrochemical industry, with formaldehyde often derived from the oxidation of methanol and acetaldehyde produced through the oxidation of ethanol. In addition to these chemical feedstocks, the manufacturing process may also require specialized equipment, such as reactors, distillation columns, and hydrogenation units, as well as utilities like steam, electricity, and cooling water.

Production outputs

Pentaerythritol is a versatile chemical that finds application in a variety of industries. It is used as a building block for the production of alkyd resins, which are used in paints, coatings, and adhesives. Pentaerythritol is also employed in the formulation of lubricants, including greases and hydraulic fluids, due to its excellent thermal stability and lubricating properties. Additionally, pentaerythritol is a key ingredient in the manufacture of explosives, such as pentaerythritol tetranitrate (PETN). Other potential consumers of pentaerythritol include the pharmaceutical industry, where it may be used as an intermediate in the synthesis of various drug compounds. Related HS codes that may utilize pentaerythritol include 290550 (Ethylene glycol (ethanediol)) and 290559 (Glycerol (propane-1,2,3-triol)).

Revisions to 290542

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 290542. The most recent 1 version of this code (290542) is in the HS v2022 system:

This page shows a legacy version of code 290542 ( HS v2017).

Newer versions
Older versions

Family tree for alcohols; polyhydric, pentaerythritol

    graph LR
    A["<a href='/classifications/hs/v2017/29'>29: Organic chemicals</a>"]
A --> B["<a href='/classifications/hs/v2017/2905'>2905: Acyclic alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives</a>"]
B --> C["<a href='/classifications/hs/v2017/290542'>290542: Alcohols; polyhydric, pentaerythritol</a>"]

    B --> D["<a href='/classifications/hs/v2017/290511'>290511: Alcohols; saturated monohydric, methanol (methyl alcohol)</a>"]
B --> E["<a href='/classifications/hs/v2017/290512'>290512: Alcohols; saturated monohydric, propan-1-ol (propyl alcohol) and propan-2-ol (isopropyl alcohol)</a>"]
B --> F["<a href='/classifications/hs/v2017/290513'>290513: Alcohols; saturated monohydric, butan-1-ol (n-butyl alcohol)</a>"]
B --> G["<a href='/classifications/hs/v2017/290514'>290514: Alcohols; saturated monohydric, butanols excluding item no. 2905.13</a>"]
B --> H["<a href='/classifications/hs/v2017/290516'>290516: Alcohols; saturated monohydric, octanol (octyl alcohol) and isomers thereof</a>"]
B --> I["<a href='/classifications/hs/v2017/290517'>290517: Alcohols; saturated monohydric, dodecan-1-ol (lauryl alcohol), hexadecan-1-ol (cetyl alcohol) and octadecan-1-ol (stearyl alcohol)</a>"]
B --> J["<a href='/classifications/hs/v2017/290519'>290519: Alcohols; saturated monohydric, n.e.c. in item no. 2905.1</a>"]
B --> K["<a href='/classifications/hs/v2017/290522'>290522: Alcohols; unsaturated monohydric, acyclic terpene alcohols</a>"]
B --> L["<a href='/classifications/hs/v2017/290529'>290529: Alcohols; acyclic, unsaturated monohydric, (other than acyclic terpene alcohols)</a>"]
B --> M["<a href='/classifications/hs/v2017/290531'>290531: Alcohols; acyclic, diols; ethylene glycol (ethanediol)</a>"]
B --> N["<a href='/classifications/hs/v2017/290532'>290532: Alcohols; acyclic, diols; propylene glycol (propane-1, 2-diol)</a>"]
B --> O["<a href='/classifications/hs/v2017/290539'>290539: Alcohols; acyclic, diols, other than ethylene glycol (ethandiol) or propylene glycol (propane-1,2-diol)</a>"]
B --> P["<a href='/classifications/hs/v2017/290541'>290541: Alcohols; polyhydric, 2-ethyl-2- (hydroxymethyl) propane-1,3-diol (trimethylolpropane)</a>"]
B --> Q["<a href='/classifications/hs/v2017/290543'>290543: Alcohols; polyhydric, mannitol</a>"]
B --> R["<a href='/classifications/hs/v2017/290544'>290544: Alcohols; polyhydric, d-glucitol (sorbitol)</a>"]
B --> S["<a href='/classifications/hs/v2017/290545'>290545: Alcohols; polyhydric, glycerol</a>"]
B --> T["<a href='/classifications/hs/v2017/290549'>290549: Alcohols; polyhydric, n.e.c. in item no. 2905.4</a>"]
B --> U["<a href='/classifications/hs/v2017/290551'>290551: Alcohols; acyclic; halogenated, sulphonated, nitrated or nitrosated derivatives thereof, ethchlorvynol (INN)</a>"]
B --> V["<a href='/classifications/hs/v2017/290559'>290559: Alcohols; acyclic; halogenated, sulphonated, nitrated or nitrosated derivatives thereof, other than ethchlorvynol (INN)</a>"]

    

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