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

HS v2022 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 chemical intermediate, trimethylolpropane plays a vital role in the production of various polymers, coatings, and specialty chemicals that are essential for numerous industries, including construction, automotive, and electronics. Its importance in the global economy stems from its versatility and ability to enhance the properties of a diverse array of end products.

Production process

Trimethylolpropane is typically produced through the reaction of propylene oxide with formaldehyde, followed by hydrogenation to yield the desired polyhydric alcohol. The process involves carefully controlling temperature, pressure, and reaction time to ensure the desired product quality and yield. Advanced catalysts and purification techniques are often employed to optimize the production efficiency and purity of the final trimethylolpropane product.

Production inputs

The main inputs required for the production of trimethylolpropane include propylene oxide, formaldehyde, and hydrogen. Additionally, the process may require specialized catalysts, solvents, and energy sources, such as steam or electricity, to facilitate the various reaction and purification steps. Efficient supply chains and access to these key raw materials are crucial for the industry's competitiveness and ability to meet the growing global demand for trimethylolpropane.

Production outputs

Trimethylolpropane is a versatile chemical intermediate that finds application in the production of a wide range of products. It is commonly used in the manufacture of alkyd resins, polyurethanes, and other polymers, which are then further processed into coatings, adhesives, sealants, and various specialty chemicals. The output of HS code 290541 may be consumed by industries covered under codes such as 3907 Polymers of ethylene, in primary forms, 3909 Amino-resins, phenolic resins and polyurethanes, in primary forms, and 3208 (Paints and varnishes (including enamels and lacquers) based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in a non-aqueous medium; solutions as defined in Note 4 to this Chapter).

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 version):

This page shows the most recent version of code 290541.

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

    graph LR
    A["<a href='/classifications/hs/v2022/29'>29: Organic chemicals</a>"]
A --> B["<a href='/classifications/hs/v2022/2905'>2905: Acyclic alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives</a>"]
B --> C["<a href='/classifications/hs/v2022/290541'>290541: Alcohols; polyhydric, 2-ethyl-2- (hydroxymethyl) propane-1,3-diol (trimethylolpropane)</a>"]

    B --> D["<a href='/classifications/hs/v2022/290511'>290511: Alcohols; saturated monohydric, methanol (methyl alcohol)</a>"]
B --> E["<a href='/classifications/hs/v2022/290512'>290512: Alcohols; saturated monohydric, propan-1-ol (propyl alcohol) and propan-2-ol (isopropyl alcohol)</a>"]
B --> F["<a href='/classifications/hs/v2022/290513'>290513: Alcohols; saturated monohydric, butan-1-ol (n-butyl alcohol)</a>"]
B --> G["<a href='/classifications/hs/v2022/290514'>290514: Alcohols; saturated monohydric, butanols excluding item no. 2905.13</a>"]
B --> H["<a href='/classifications/hs/v2022/290516'>290516: Alcohols; saturated monohydric, octanol (octyl alcohol) and isomers thereof</a>"]
B --> I["<a href='/classifications/hs/v2022/290517'>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/v2022/290519'>290519: Alcohols; saturated monohydric, n.e.c. in item no. 2905.1</a>"]
B --> K["<a href='/classifications/hs/v2022/290522'>290522: Alcohols; unsaturated monohydric, acyclic terpene alcohols</a>"]
B --> L["<a href='/classifications/hs/v2022/290529'>290529: Alcohols; acyclic, unsaturated monohydric, (other than acyclic terpene alcohols)</a>"]
B --> M["<a href='/classifications/hs/v2022/290531'>290531: Alcohols; acyclic, diols; ethylene glycol (ethanediol)</a>"]
B --> N["<a href='/classifications/hs/v2022/290532'>290532: Alcohols; acyclic, diols; propylene glycol (propane-1, 2-diol)</a>"]
B --> O["<a href='/classifications/hs/v2022/290539'>290539: Alcohols; acyclic, diols, other than ethylene glycol (ethandiol) or propylene glycol (propane-1,2-diol)</a>"]
B --> P["<a href='/classifications/hs/v2022/290542'>290542: Alcohols; polyhydric, pentaerythritol</a>"]
B --> Q["<a href='/classifications/hs/v2022/290543'>290543: Alcohols; polyhydric, mannitol</a>"]
B --> R["<a href='/classifications/hs/v2022/290544'>290544: Alcohols; polyhydric, d-glucitol (sorbitol)</a>"]
B --> S["<a href='/classifications/hs/v2022/290545'>290545: Alcohols; polyhydric, glycerol</a>"]
B --> T["<a href='/classifications/hs/v2022/290549'>290549: Alcohols; polyhydric, n.e.c. in item no. 2905.4</a>"]
B --> U["<a href='/classifications/hs/v2022/290551'>290551: Alcohols; acyclic; halogenated, sulphonated, nitrated or nitrosated derivatives thereof, ethchlorvynol (INN)</a>"]
B --> V["<a href='/classifications/hs/v2022/290559'>290559: Alcohols; acyclic; halogenated, sulphonated, nitrated or nitrosated derivatives thereof, other than ethchlorvynol (INN)</a>"]

    

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