Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, methyloxirane (propylene oxide)

HS v2022 Code: 291020

About epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, methyloxirane (propylene oxide)

HS code 291020 covers a group of organic compounds known as epoxides, which are characterized by a three-membered ring containing one oxygen atom. These compounds are widely used in the chemical industry, with applications ranging from the production of plastics and resins to the synthesis of various pharmaceuticals and other specialty chemicals. The epoxides described by this code, including methyloxirane (propylene oxide), are essential building blocks for a diverse array of products that are integral to modern industrial and consumer markets.

Production process

The primary production method for the epoxides covered by HS code 291020 is the epoxidation of olefins, which involves the addition of an oxygen atom to the carbon-carbon double bond. This process is typically carried out using a variety of oxidizing agents, such as peracids or hydrogen peroxide, in the presence of a catalyst. The specific techniques and reaction conditions can vary depending on the target epoxide and the desired level of purity and selectivity.

Production inputs

The main inputs required for the production of the epoxides described by HS code 291020 include olefin feedstocks, such as propylene, as well as various oxidizing agents, catalysts, and solvents. The production process also requires specialized equipment, such as reactors, distillation columns, and purification systems, to ensure the efficient and safe manufacture of these compounds.

Production outputs

The epoxides covered by HS code 291020 are widely used as intermediates in the production of a wide range of downstream products. For example, methyloxirane (propylene oxide) is a key raw material for the manufacture of 390110 Polyethylene, having a specific gravity of less than 0.94, 390120 Polyethylene, having a specific gravity of 0.94 or more, and 390210 Polypropylene. Other epoxides in this group may be used in the production of epoxy resins, surfactants, and various specialty chemicals.

Revisions to 291020

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 291020. The most recent 1 version of this code (291020) is in the HS v2022 system (this version):

This page shows the most recent version of code 291020.

Family tree for epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, methyloxirane (propylene oxide)

    graph LR
    A["<a href='/classifications/hs/v2022/29'>29: Organic chemicals</a>"]
A --> B["<a href='/classifications/hs/v2022/2910'>2910: Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives</a>"]
B --> C["<a href='/classifications/hs/v2022/291020'>291020: Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, methyloxirane (propylene oxide)</a>"]

    B --> D["<a href='/classifications/hs/v2022/291010'>291010: Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives; oxirane (ethylene oxide)</a>"]
B --> E["<a href='/classifications/hs/v2022/291030'>291030: Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, 1-chloro-2,3-epoxypropane (epichlorohydrin)</a>"]
B --> F["<a href='/classifications/hs/v2022/291040'>291040: Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, dieldrin (ISO, INN)</a>"]
B --> G["<a href='/classifications/hs/v2022/291050'>291050: Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, endrin (ISO)</a>"]
B --> H["<a href='/classifications/hs/v2022/291090'>291090: Epoxides, epoxyalcohols, epoxyphenols and epoxyethers; with a three-membered ring and their halogenated, sulphonated, nitrated or nitrosated derivatives, n.e.c. in heading no. 2910</a>"]

    

    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level6
class D level6
class E level6
class F level6
class G level6
class H level6

  class C highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class C highlight