Salts; tungstates (wolframates)

HS v2017 Code: 284180

About salts; tungstates (wolframates)

HS code 284180 covers a range of salts and tungstates, which are important industrial chemicals with diverse applications. Tungstates, also known as wolframates, are the salts of the element tungsten, a rare and valuable metal. These compounds are widely used in the production of various products, from lighting and electronics to construction materials and catalysts, making them a crucial component of many industries.

Production process

The production of salts and tungstates typically involves chemical reactions and purification processes. Tungstates are commonly produced by reacting tungsten ore or scrap with alkaline solutions, such as sodium hydroxide or potassium hydroxide, to form the corresponding tungstate salts. These salts are then further processed, often through crystallization or precipitation, to obtain the desired purity and form.

Production inputs

The main inputs required for the production of salts and tungstates include tungsten-containing raw materials, such as tungsten ore or scrap, as well as various chemical reagents and energy sources. Depending on the specific product, other inputs may include solvents, catalysts, and specialized equipment for processing and purification.

Production outputs

The primary outputs of HS code 284180 are a range of salts and tungstates, which find applications in diverse industries. These compounds may be used as 282590 Inorganic chemical products, n.e.c. in the production of 854389 Electrical machinery and equipment and parts thereof, n.e.c. and 681599 Articles of stone or of other mineral substances, n.e.c..

Revisions to 284180

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 284180. The most recent 1 version of this code (284180) is in the HS v2022 system:

This page shows a legacy version of code 284180 ( HS v2017).

Newer versions
Older versions

Family tree for salts; tungstates (wolframates)

    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/v2017/2841'>2841: Salts of oxometallic or peroxometallic acids</a>"]
B --> C["<a href='/classifications/hs/v2017/284180'>284180: Salts; tungstates (wolframates)</a>"]

    B --> D["<a href='/classifications/hs/v2017/284130'>284130: Salts; sodium dichromate</a>"]
B --> E["<a href='/classifications/hs/v2017/284150'>284150: Salts; chromates, dichromates, peroxochromates; n.e.c. in heading no. 2841</a>"]
B --> F["<a href='/classifications/hs/v2017/284161'>284161: Salts; of oxometallic or peroxometallic acids, manganites, manganates and permanganates, potassium permanganate</a>"]
B --> G["<a href='/classifications/hs/v2017/284169'>284169: Salts; of oxometallic or peroxometallic acids, manganites, manganates and permanganates, other than potassium permanganate</a>"]
B --> H["<a href='/classifications/hs/v2017/284170'>284170: Salts; molybdates</a>"]
B --> I["<a href='/classifications/hs/v2017/284190'>284190: Salts of oxometallic or peroxometallic acids; n.e.c. in heading no. 2841</a>"]

    

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