HS Code 2836Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate

What HS code 2836 covers

A carbonate is a salt made from carbonic acid. Heading 2836 groups these salts. It also names peroxocarbonates, which many people call percarbonates. It also names commercial ammonium carbonate that contains ammonium carbamate.

The heading sits in Chapter 28, the chapter for inorganic chemicals, and in Section VI, which holds products of the chemical or allied industries. If you are not sure the heading is right, the Chapter 28 page shows the other inorganic chemicals next to it. HSN code 2836 is the same heading, so Indian users will find it under that name too.

Under this heading, each six-digit code is a named carbonate. The metal in the salt decides the code. So the first question is always: which carbonate do I have?

HS code for sodium carbonate, bicarbonate, potassium, calcium and lithium carbonate

Here is what each code means, in plain words. The wording comes from the World Customs Organization list.

• 283620: disodium carbonate. This is the chemical many traders call sodium carbonate or soda ash.
• 283630: sodium hydrogen carbonate, also known as sodium bicarbonate. It is not the same code as sodium carbonate.
• 283640: potassium carbonate.
• 283650: calcium carbonate.
• 283660: barium carbonate.
• 283691: lithium carbonate.
• 283692: strontium carbonate.

How to choose the right carbonate code (and which HS code for ammonium carbonate)

Start with the metal or group in the salt. Look for it in the named codes from 283620 to 283692 first. If you find a match, use that code.

Use 283699 only when no named code fits. Its wording says it is for carbonates not named in heading 2836, and not for lithium or strontium. Those two have their own codes, 283691 and 283692, so they never go into 283699.

Ammonium carbonate is named in the heading text, but it has no line of its own in the code list. The residual code 283699 is the place to check first. Percarbonates are in the same position, because the list has no separate line for them. Compare your product with each code wording before you decide.

If you are still unsure, try the HS code classifier.

Headings often confused with 2836

Several nearby headings cover salts that look alike on a product sheet. The difference is the type of salt.

• Same idea as 2836, but the salt is a sulphate and not a carbonate. This is the usual answer to the difference between 2836 and 2833.
• 2840: borates and peroxoborates (perborates). This is the boron cousin of the percarbonates in 2836.
• 2847: hydrogen peroxide, whether or not solidified with urea. A solid peroxide product may be a percarbonate or a urea compound, so check the wording.
• 2815: sodium hydroxide (caustic soda) and potassium hydroxide. These are hydroxides, not carbonates.

Find buyers and suppliers of carbonates under HS 2836

EximDataX shows shipment-level import and export records from official customs sources. Coverage: 43 direct customs feeds plus 184 mirror-derived countries. Named buyers and named suppliers are available in 38 of the 43 direct markets. Most markets refresh weekly and some refresh daily. You can search by HS code to see who imports and exports a product, and book a free demo.

Enter the six-digit code from the table above, such as 283650 for calcium carbonate or 283691 for lithium carbonate. Then open the import, export, buyer or supplier pages to go further.