HS Code 2811
Other Inorganic Acids and Oxygen Compounds
HS code 2811 covers other inorganic acids and oxygen compounds of non-metals, including carbon dioxide, nitrous oxide, and silicon dioxide (silica gel).
4-digit Section VIFCL Hazmat 2.2
HS Code 2811 — Other Inorganic Acids and Oxygen Compounds
This 'basket' code covers miscellaneous inorganic acids and oxygen compounds (like carbon dioxide or nitrous oxide) that are not classified in more specific headings of Chapter 28.
What's included
- Carbon dioxide (CO2)
- Nitrous oxide (Laughing gas)
- Silicon dioxide (synthetic silica)
- Hydrogen cyanide
What's excluded
- Nitric acid → use
2808(Nitric acid has its own specific heading 2808.)
Common examples
- Carbon dioxide cylinders for beverage carbonation
- Nitrous oxide for medical anaesthesia
- Silica gel (non-activated)
Frequently asked questions
Is medical grade nitrous oxide classified here?
Yes, even used for medical purposes, the gas itself is classified under 2811.
Trade & shipping notes
- Typical duty range: 0% - 5.5%
- Documentation: Nitrous oxide often requires specialized medical or industrial use permits.
- Typical shipping mode: FCL
- Top exporters: China, Germany, United States
- Top importers: India, Brazil, Japan
Related HS codes
Key takeaway
A catch-all for various gases and silica; check specific gas properties for hazardous shipping requirements.
Related HS codes
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