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EU Combined Nomenclature CN2026

HS code 2811: II. INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS

Heading 2811 of the EU Combined Nomenclature 2026, in chapter 28, with the official text of every 6-digit subheading and 8-digit CN code below it.

Official description

2811II. INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS | Other inorganic acids and other inorganic oxygen compounds of non-metals

Place in the nomenclature: 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes > 2811

Explanatory note (Eurostat)

Inorganic acids and inorganic oxygen compounds of non-metals (excl. hydrogen chloride "hydrochloric acid", chlorosulphuric acid, sulphuric acid, oleum, nitric acid, sulphonitric acids, diphosphorus pentaoxide, phosphoric acid, polyphosphoric acids, oxides of boron and boric acids)

Subheadings (6 digits)
6
CN codes (8 digits)
10

Subheadings and CN codes in heading 2811

  • 2811 11Other inorganic acids | Hydrogen fluoride (hydrofluoric acid)

    Explanatory note (Eurostat): Hydrogen fluoride "hydrofluoric acid"

    • 2811 11 00 Hydrogen fluoride (hydrofluoric acid)
  • 2811 12Other inorganic acids | Hydrogen cyanide (hydrocyanic acid)

    Explanatory note (Eurostat): Hydrogen cyanide "hydrocyanic acid"

    • 2811 12 00 Hydrogen cyanide (hydrocyanic acid)
  • 2811 19Other inorganic acids | Other

    Explanatory note (Eurostat): Inorganic acids (excl. hydrogen chloride "hydrochloric acid", chlorosulphuric acid, sulphuric acid, oleum, nitric acid, sulphonitric acids, phosphoric acid, polyphosphoric acids, boric acids, hydrogen fluoride "hydrofluoric acid" and hydrogen cyanide "hydrocyanic acid")

    • 2811 19 10 Hydrogen bromide (hydrobromic acid)
    • 2811 19 80 Other
  • 2811 21Other inorganic oxygen compounds of non-metals | Carbon dioxide

    Explanatory note (Eurostat): Carbon dioxide

    • 2811 21 00 Carbon dioxide
  • 2811 22Other inorganic oxygen compounds of non-metals | Silicon dioxide

    Explanatory note (Eurostat): Silicon dioxide

    • 2811 22 00 Silicon dioxide
  • 2811 29Other inorganic oxygen compounds of non-metals | Other

    Explanatory note (Eurostat): Inorganic oxygen compounds of non-metals (excl. diphosphorus pentaoxide, oxides of boron, carbon dioxide and silicon dioxide)

    • 2811 29 05 Sulphur dioxide
    • 2811 29 10 Sulphur trioxide (sulphuric anhydride); diarsenic trioxide
    • 2811 29 30 Nitrogen oxides
    • 2811 29 90 Other

The first 6 digits are the Harmonized System, shared worldwide: a US HTS code that starts with the same 6 digits sits under the same subheading. The last 2 digits are the EU's own CN split.

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Not a binding classification

These pages show the official texts for reference. They are not a binding classification: check the code with your customs broker, or ask your customs authority for Binding Tariff Information (BTI).

Source

Source: EU Combined Nomenclature 2026 (Commission Implementing Regulation (EU) 2025/1926), © European Union, https://eur-lex.europa.eu/. Reformatted by WISEPIM: indent dashes removed and parent lines joined. Only the Official Journal is authentic.