Silicates; sodium metasilicates

HS v2017 Code: 283911

About silicates; sodium metasilicates

HS code 283911 covers the production and trade of silicates, particularly sodium metasilicates. Silicates are a broad class of chemical compounds that play a vital role in various industries, including construction, glass manufacturing, and detergent production. As a key component in many essential products, the silicates industry is an integral part of the global economy.

Production process

The primary production method for sodium metasilicates involves the reaction of sodium oxide (Na2O) with silicon dioxide (SiO2) at high temperatures. This process, known as the soda-lime process, yields a sodium silicate solution that is then dried and processed into various forms, such as powders, granules, or liquid concentrates.

Production inputs

The main inputs required for the production of silicates under HS code 283911 include raw materials such as sand (SiO2), soda ash (Na2CO3), and other alkali sources. Additionally, the industry relies on specialized equipment like furnaces, evaporators, and drying systems to facilitate the chemical reactions and processing stages.

Production outputs

The primary outputs of the silicates industry covered by HS code 283911 are various forms of sodium metasilicates, which find applications in 282520 Calcium carbonate, 282530 Calcium hydroxide, and 282540 Calcium oxide, hydroxide and peroxide. These silicates are widely used in the production of detergents, glass, ceramics, and as a component in construction materials.

Revisions to 283911

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 283911. The most recent 1 version of this code (283911) is in the HS v2022 system:

This page shows a legacy version of code 283911 ( HS v2017).

Newer versions
Older versions

Family tree for silicates; sodium metasilicates

    graph LR
    A["<a href='/classifications/hs/v2017/28'>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/v2017/2839'>2839: Silicates; commercial alkali metal silicates</a>"]
B --> C["<a href='/classifications/hs/v2017/283911'>283911: Silicates; sodium metasilicates</a>"]

    B --> D["<a href='/classifications/hs/v2017/283919'>283919: Silicates; of sodium (excluding sodium metasilicates)</a>"]
B --> E["<a href='/classifications/hs/v2017/283990'>283990: Silicates; commercial alkali metal silicates, other than of sodium</a>"]

    

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