Heading 2811: Other inorganic acids and other inorganic oxygen compounds of nonmetals
In chapter 28, Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes. 12 rate lines, laid out as HTS Revision 20 (2026) prints them.
| HTS number | Description | Units | General | Special | Column 2 |
|---|---|---|---|---|---|
| 2811 | Other inorganic acids and other inorganic oxygen compounds of nonmetals: | ||||
| Other inorganic acids: | |||||
| 2811.11.00.00 | Hydrogen fluoride (Hydrofluoric acid) | kg | Free | Free | |
| 2811.12.00.00 | Hydrogen cyanide (hydrocyanic acid) | kg | 4.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% |
| 2811.19 | Other: | ||||
| 2811.19.10.00 | Arsenic acid | kg | 2.3% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 4.9% |
| 2811.19.30.00 | Hydrobromic acid | kg | Free | 25% | |
| 2811.19.61 | Other | 4.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | |
| 2811.19.61.10 | Sulfamic acid | kg | |||
| 2811.19.61.90 | Other | kg | |||
| Other inorganic oxygen compounds of nonmetals: | |||||
| 2811.21.00.00 | Carbon dioxide | t | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% |
| 2811.22 | Silicon dioxide: | ||||
| 2811.22.10.00 | Synthetic silica gel | kg | 3.7% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% |
| 2811.22.50.00 | Other | kg | Free | Free | |
| 2811.29 | Other: | ||||
| 2811.29.10.00 | Arsenic trioxide | kg | Free | Free | |
| 2811.29.20.00 | Selenium dioxide | kg | Free | Free | |
| 2811.29.30.00 | Sulfur dioxide | kg | 4.2% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% |
| 2811.29.50.00 | Other | kg | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% |
Rates are quoted as printed. Each 8-digit number opens its own page with footnotes and cited chapter 99 headings.
Watch lines in heading 2811
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- 9903.90.08 cited by 2 lines
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Built September 29, 2026 from HTS Revision 20 (2026) (USITC release 2026HTSRev20, published September 23, 2026, current since September 28, 2026). The schedule changes often; USITC's own site always has the current text.