Alcohols; polyhydric, 2-ethyl-2- (hydroxymethyl) propane-1,3-diol (trimethylolpropane)

HS v2017 Code: 290541

About alcohols; polyhydric, 2-ethyl-2- (hydroxymethyl) propane-1,3-diol (trimethylolpropane)

HS code 290541 covers the classification of trimethylolpropane, a polyhydric alcohol with a wide range of industrial applications. As a key ingredient in the production of alkyd resins, polyurethanes, and other specialty chemicals, trimethylolpropane plays a vital role in the manufacturing of paints, coatings, adhesives, and various polymer-based products. This versatile compound is an important component in the broader chemicals industry, contributing to the development of diverse consumer and industrial goods.

Production process

Trimethylolpropane is typically produced through the reaction of propylene oxide with formaldehyde, followed by hydrogenation to reduce the aldehyde groups to alcohols. The process involves several steps, including purification and crystallization, to obtain the desired purity and quality of the final product.

Production inputs

The main inputs required for the production of trimethylolpropane include propylene oxide, formaldehyde, and hydrogen. Additionally, the process may require specialized equipment such as reactors, distillation columns, and crystallization units. Energy sources, such as steam or electricity, are also necessary to power the various stages of production.

Production outputs

Trimethylolpropane is a versatile chemical that finds application in the production of 290520 Alcohols, cyclic and acyclic, monohydric, saturated, 390110 Polyethylene, having a specific gravity of less than 0.94, and 390120 Polyethylene, having a specific gravity of 0.94 or more. It is a key ingredient in the manufacture of alkyd resins, polyurethanes, and other specialty chemicals used in a wide range of industries, including coatings, adhesives, and plastics.

Revisions to 290541

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 290541. The most recent 1 version of this code (290541) is in the HS v2022 system:

This page shows a legacy version of code 290541 ( HS v2017).

Family tree for alcohols; polyhydric, 2-ethyl-2- (hydroxymethyl) propane-1,3-diol (trimethylolpropane)

    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/v2017/290541'>290541: Alcohols; polyhydric, 2-ethyl-2- (hydroxymethyl) propane-1,3-diol (trimethylolpropane)</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/v2017/290542'>290542: Alcohols; polyhydric, pentaerythritol</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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