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HS Code Lookup for Heading 2840

HS Code Lookup helps classify products under appropriate HS code and find duties applicable across 140+ countries. Find and discover HS classification, tariffs, taxes, controls, rulings, ECCNs, and default and preferential duties for HS code 2840.

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Heading 2840
Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes - Borates; peroxoborates (perborates).
List of Sub Headings & Description

WCO Notes for Heading 2840

28.40 ‑ Borates; peroxoborates (perborates).

‑ Disodium tetraborate (refined borax) :

2840.11 ‑ ‑ Anhydrous

2840.19 ‑ ‑ Other

2840.20 ‑ Other borates

2840.30 ‑ Peroxoborates (perborates)

(A) BORATES

Subject to the exclusions mentioned in the introduction to this sub‑Chapter, this heading covers borates, metal salts of the various boric acids, principally normal or orthoboric acid (H3BO3) (heading 28.10).

Borates obtained by crystallisation or by a chemical process are covered by this heading, as are also natural borates obtained by evaporating complex brines from certain salt lakes.

(1) Sodium borates. The most important is the tetraborate (disodium tetraborate, refined borax) (Na2B4O7). Obtained by crystallisation of solutions of natural borates, or by treating natural calcium borates or boric acid with sodium carbonate. Anhydrous or hydrated with 5 H2O or 10 H2O. Heated and then cooled down, it gives a vitreous mass (melted borax, borax glass, borax bead). Used for stiffening linen or paper; in soldering metals (flux for hard solder); as a flux for enamels; in the manufacture of vitrifiable colours, special glass (optical glass, glass for electric bulbs), glue or polish; for refining gold; and for preparing borates and anthraquinone dyes.

There are other sodium borates (metaborates, hydrogen diborate) for laboratory uses.

(2) Ammonium borates. The most important of these is metaborate (NH4BO2.2H2O). Colourless crystals, very soluble in water, efflorescent. Decomposed by heat to give a fusible varnish of boric anhydride; hence its use as a fire‑proofing material. Also used as a fixative in hair‑lotions; as a component of electrolytes for electrolytic capacitors and in the coating of paper.

(3) Precipitated calcium borates. Obtained by treating natural borates with calcium chloride; white powder used in fire retardant compositions, in anti‑freezing preparations and in ceramic insulators. It can also be used as an antiseptic.

(4) Manganese borates. Mainly tetraborate (MnB4O7), pinkish powder, sparingly soluble. Used as a drier in paints or varnishes.

(5) Nickel borate. Pale green crystals, used as a catalyst.

(6) Copper borate. Blue crystals, very hard, insoluble in water. Used as a pigment (ceramic colours) and as an antiseptic and insecticide.

(7) Lead borate. Greyish powder, insoluble in water. It is used to prepare driers, in glass‑making, as a pigment for porcelain and in electroplating.

(8) Other borates. Cadmium borate is used as a coating for fluorescent tubes. Cobalt borate is used as a drier; zinc borate as an antiseptic, in fire-proofing textiles or as a flux in ceramics, zirconium borate as an opacifier.

Natural sodium borates (kernite, tincal), used to prepare the borates of this heading, and natural calcium borates, (pandermite, priceite), used in the manufacture of boric acid, are excluded (heading 25.28).

(B) PEROXOBORATES (PERBORATES)

Subject to the exclusions mentioned in the introduction to this sub‑Chapter, this heading covers metal peroxoborates, which are more oxygenated than borates and readily release their oxygen.

They are generally complex products the formula of which corresponds to several acids such as HBO3 or HBO4.

The main peroxoborates are :

(1) Sodium peroxoborate (perborax). Obtained by the action of sodium peroxide on an aqueous solution of boric acid, or by treating an aqueous solution of sodium borate with hydrogen peroxide. White amorphous powder or crystals (with 1 or 4 H2O). Used for bleaching linen, textiles and straw; for preserving hides; in the manufacture of household washing preparations, detergents and antiseptics.

(2) Magnesium peroxoborate. White powder, insoluble in water, used in medicine or in the manufacture of toothpastes.

(3) Potassium peroxoborate. Similar characteristics and uses to sodium peroxoborate.

(4) Other peroxoborates. Ammonium, aluminium, calcium or zinc peroxoborates, which occur as white powders, are used in medicine and in the manufacture of tooth‑pastes.

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FAQs
What is HS code 2840?
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HS code 2840 includes Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes - Borates; peroxoborates (perborates)..
How many sub-headings are there in HS code 2840?
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There are 4 sub-heading(s) in HS code 2840.
What is an HS Code and Why Does it Hold For Cross-Border Trade?
HS code is a standardized six-digit numerical classification system developed by the World Customs Organization (WCO) and acts as a universal language for simplifying the process of identifying and classifying traded products. They ensure consistent customs clearance, enable accurate duty calculation, and help identify relevant trade regulations. This simplifies the process for businesses, saving time, reducing risk, and promoting informed decision-making.
What are Controls and Why should Businesses Focus on Them?
In global trade, controls refer to a set of regulations and policies implemented by governments to manage the import and export of goods and services. These controls can take various forms, including tariffs, quotas, embargoes, export controls, and licensing requirements. Companies should prioritize understanding and adhering to them for compliance, reduced risk of legal issues, mitigating reputational damage, staying competitive, and building trust with governments.
What are Tariffs in Global Trade and Why should Businesses Focus on Them?
In global trade, tariffs are a type of tax levied by a government on imported goods. They act as a financial barrier to entry, increasing the overall cost of the imported product for domestic consumers and businesses. By understanding how tariffs work and their potential impact, companies can make informed decisions about pricing, sourcing, and market expansion, ultimately ensuring their competitiveness in the global marketplace.
What are FTAs in Global Trade and Why should Businesses Focus on Them?
In global trade, Free Trade Agreements (FTAs) are legally binding agreements between two or more countries aimed at reducing or eliminating barriers to trade between them. By understanding the terms of relevant FTAs and strategically incorporating them into their business plans, companies can enjoy reduced costs, expanded market access, and a more competitive edge in international trade.

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