HS Code 2811Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810
6 six-digit codes · Heading 11 of 50 in Chapter 28 · World Customs Organization Harmonized System
HS code 2811 is where customs files hydrofluoric acid, carbon dioxide, silicon dioxide and a few related inorganic goods.
The WCO writes heading 2811 as a residual bucket: goods of Chapter 28that answer to “Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810” and that no more specific heading in the chapter already claims. It still carries 6 six-digit codes, 281111 through 281129, so “other” is not the end of the classification here. The heading is number 11 of 50 in Chapter 28, Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes, which runs to 180 six-digit codes in all.
Six-digit codes under heading 2811
| HS Code | Import–export description |
|---|---|
| 281111 | Hydrogen fluoride (hydrofluoric acid) |
| 281112 | Hydrogen cyanide (hydrocyanic acid) |
| 281119 | Inorganic acids; other than hydrogen fluoride |
| 281121 | Carbon dioxide |
| 281122 | Silicon dioxide |
| 281129 | Inorganic oxygen compounds; of non-metals, n.e.c. in item no. 2811.2 |
What products are classified under HS code 2811
Heading 2811 is a catch-all inside Chapter 28 inorganic chemicals. It takes inorganic acids and oxygen compounds of non-metals that the headings before it do not name. The word "other" does not mean the goods are unsorted. Each subcode is meant for a clear product.
You may also see this called HSN code 2811 or HTS code 2811. The heading number is the same in each system. Countries add their own extra digits after the international level for local tariff classification.
Think of the heading as a shelf with two halves. One half holds acids. The other half holds oxygen compounds.
Subcodes under heading 2811: acids and oxygen compounds
The first group, 281111 to 281119, is for acids. The second group, 281121 to 281129, is for oxygen compounds. In each group the last code is the residual one, used when no named code fits.
- 281111: hydrogen fluoride (hydrofluoric acid).
- 281112: hydrogen cyanide (hydrocyanic acid).
- 281119: any other inorganic acid with no code of its own. Its official wording is inorganic acids other than hydrogen fluoride.
- 281121: carbon dioxide.
- 281122: silicon dioxide.
- 281129: any other oxygen compound of a non-metal that is not carbon dioxide or silicon dioxide.
What does 2811 not include
If a nearby heading names your product, that heading wins. A common mistake is to place a well-known acid here only because it is inorganic. Always look at the named headings first.
These products are filed elsewhere:
- Hydrochloric acid: heading 2806.
- Nitric acid: heading 2808.
- Phosphoric acid: heading 2809.
- Boric acids: heading 2810.
- Hydrogen and rare gases: heading 2804.
Tariff classification of 2811: how to choose the right code
Start with the exact name of your product. Then follow these steps.
- Check headings 2806 to 2810. If one of them names your product, stop and use it.
- For an acid, ask whether it is hydrogen fluoride or hydrogen cyanide. They have their own subcodes.
- For an oxygen compound, ask whether it is carbon dioxide or silicon dioxide.
- Use the two residual subcodes, 281119 and 281129, only when no named code fits.
- Still unsure? Try the HS code classifier, then check the result against your country's tariff text.
Import and export data for this heading
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.
Related
- Chapter 28 inorganic chemicals
- HS 2806 hydrochloric acid
- HS 2807 sulphuric acid
- HS 2808 nitric acid
- HS 2809 phosphoric acid
- HS 2810 boric acids
- HS 2812 halides of non-metals
- HS 2804 hydrogen and rare gases
- HS code classifier
- HS 2811 import data
- HS 2811 export data
- buyers of inorganic acids
- suppliers of inorganic acids
- Book a free demo
Nearby headings in Chapter 28
- 2805Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium…5 codes
- 2806Hydrogen chloride (hydrochloric acid); chlorosulphuric acid2 codes
- 2807Sulphuric acid; oleum1 code
- 2808Nitric acid; sulphonitric acids1 code
- 2809Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or…2 codes
- 2810Oxides of boron; boric acids1 code
- 2812Halides and halide oxides of non-metals9 codes
- 2813Sulphides of non-metals; commercial phosphorus trisulphide2 codes
- 2814Ammonia; anhydrous or in aqueous solution2 codes
- 2815Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash)…4 codes
- 2816Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides of…2 codes
- 2817Zinc; oxide and peroxide1 code
Who ships under 2811?
EximDataX tracks the live import–export records filed under this heading and the 6 codes beneath it: named buyers, suppliers, quantities and values from official customs feeds.
Section VI: Products of the Chemical or Allied Industries, chapters 28–38.
HS Code 2811: common questions
What is heading 2811?
It is a group in Chapter 28 that comes after the named acids of 2806 to 2810. Goods go there only when those earlier headings do not fit.
What is the HS code for hydrofluoric acid?
The name matches 281111, the first subcode in this heading.
What is the HS code for carbon dioxide?
Carbon dioxide has its own code, 281121, so you do not need a residual code.
What is the HS code for silicon dioxide?
Use 281122. It sits right next to carbon dioxide in the oxygen compound group.
What does 281119 cover?
It catches acids in this heading that have no named code. Hydrogen cyanide is not part of it, because 281112 names it.
Are hydrochloric, sulphuric or nitric acid classified under 2811?
No. Each has its own heading, so they are filed outside 2811.
How do I choose between 281111 and 281129?
281111 is only for hydrogen fluoride. 281129 is for oxygen compounds of non-metals, so it does not fit an acid.
See what your buyers are buying.Then decide.
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