HS code 2811.11: Other inorganic acids, hydrogen fluoride (hydrofluoric acid)
Last updated
Key facts
- HS code
- 2811.11
- Covers
- Other inorganic acids, hydrogen fluoride (hydrofluoric acid)
- Edition
- HS2022
- Duty rates
- Set by each country’s tariff
Summary
HS code 2811.11 covers other inorganic acids, hydrogen fluoride (hydrofluoric acid). It sits in heading 28.11 (other inorganic acids and other inorganic oxygen compounds of non-metals) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes). Other goods of heading 28.11 are classified under 2811.12 (other inorganic acids, hydrogen cyanide (hydrocyanic acid)), 2811.19 (other inorganic acids, other), 2811.21 (other inorganic oxygen compounds of non-metals, carbon dioxide), 2811.22 (other inorganic oxygen compounds of non-metals, silicon dioxide) or 1 other.
What this code covers
HS code 2811.11 covers other inorganic acids, hydrogen fluoride (hydrofluoric acid).
The legal text of the subheading is “Other inorganic acids: Hydrogen fluoride (hydrofluoric acid)”, read under “Other inorganic acids”, in HS2022.
What it doesn’t cover
Other goods of heading 28.11 are classified under 2811.12 (other inorganic acids, hydrogen cyanide (hydrocyanic acid)), 2811.19 (other inorganic acids, other), 2811.21 (other inorganic oxygen compounds of non-metals, carbon dioxide), 2811.22 (other inorganic oxygen compounds of non-metals, silicon dioxide) or 1 other.
How it is structured
2811.11 is a six-digit subheading. Its first two digits, 28, are the chapter; the first four, 2811, are heading 28.11; the last two, 11, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Within the heading
- Other inorganic acids
- Subheading 2811.11
- Hydrogen fluoride (hydrofluoric acid)
In other countries
No national tariff lines under 2811.11 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 2811.11 at six digits and add their own digits after it.
Frequently asked questions
What does HS code 2811.11 cover?
HS code 2811.11 covers other inorganic acids, hydrogen fluoride (hydrofluoric acid).
Which heading and chapter is HS code 2811.11 in?
HS code 2811.11 is in heading 28.11 (other inorganic acids and other inorganic oxygen compounds of non-metals) in chapter 28 (inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes).
Where are goods of heading 28.11 classified when 2811.11 doesn’t fit?
Other goods of heading 28.11 are classified under 2811.12 (other inorganic acids, hydrogen cyanide (hydrocyanic acid)), 2811.19 (other inorganic acids, other), 2811.21 (other inorganic oxygen compounds of non-metals, carbon dioxide), 2811.22 (other inorganic oxygen compounds of non-metals, silicon dioxide) or 1 other.
Sources and updates
The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.
This page was last updated on 13 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.