Dithionites and sulphoxylates; of sodium

HS v2022 Code: 283110

About dithionites and sulphoxylates; of sodium

HS code 283110 covers the production and trade of dithionites and sulphoxylates, specifically those of sodium. These chemical compounds are widely used in various industries, including textiles, paper, and photography, due to their reducing and bleaching properties. As an essential component in many industrial processes, the dithionites and sulphoxylates industry plays a crucial role in the broader chemical and manufacturing sectors.

Production process

The production of dithionites and sulphoxylates of sodium typically involves the reduction of sulfur dioxide (SO2) in the presence of sodium hydroxide (NaOH) or sodium carbonate (Na2CO3). This process results in the formation of sodium dithionite (Na2S2O4) and sodium sulphoxylate (Na2SO2), the primary outputs of this industry. The specific production methods may vary depending on the desired purity and application of the final products.

Production inputs

The main inputs required for the production of dithionites and sulphoxylates of sodium include sulfur dioxide, sodium hydroxide or sodium carbonate, and various other chemicals and catalysts used in the reduction and purification processes. Additionally, the industry relies on specialized equipment, such as reactors, filtration systems, and drying units, to ensure efficient and consistent production.

Production outputs

The primary outputs of the dithionites and sulphoxylates of sodium industry are 283110 Dithionites and sulphoxylates; of sodium, which find applications in various industries. These compounds are often used as reducing agents, bleaching agents, and preservatives in industries such as 520100 Fabrics, woven, 470100 Pulp of wood or of other fibrous cellulosic material, and 370100 Photographic plates and film in the flat, sensitised, unexposed. The outputs of this industry are essential for maintaining the quality and efficiency of these downstream industries.

Revisions to 283110

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 283110. The most recent 1 version of this code (283110) is in the HS v2022 system (this version):

This page shows the most recent version of code 283110.

Family tree for dithionites and sulphoxylates; of sodium

    graph LR
    A["<a href='/classifications/hs/v2022/28'>28: Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes</a>"]
A --> B["<a href='/classifications/hs/v2022/2831'>2831: Dithionites and sulphoxylates</a>"]
B --> C["<a href='/classifications/hs/v2022/283110'>283110: Dithionites and sulphoxylates; of sodium</a>"]

    B --> D["<a href='/classifications/hs/v2022/283190'>283190: Dithionites and sulphoxylates; other than sodium</a>"]

    

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