CN 2811
Other inorganic acids and other inorganic oxygen compounds of non-metals
| Code | Description | Unit | Third-country duty | Source |
|---|---|---|---|---|
| Other inorganic acids | ||||
| 2811 11 00 00 | Hydrogen fluoride (hydrofluoric acid) | 5.5% | TARIC | |
| 2811 12 00 00 | Hydrogen cyanide (hydrocyanic acid) | 5.3% | TARIC | |
| 2811 19 | Other | TARIC | ||
| 2811 19 10 00 | Hydrogen bromide (hydrobromic acid) | 0% | TARIC | |
| 2811 19 80 | Other | TARIC | ||
| 2811 19 80 40 | Arsenic acid (CAS RN 7778-39-4) | 5.3% | TARIC | |
| 2811 19 80 50 | Sulphamidic acid (CAS RN 5329-14-6) with a purity by weight of 95 % or more, whether or not with not more than 5 % addition of the anti-caking agent silicon dioxide (CAS RN 112926-00-8) | 5.3% | TARIC | |
| 2811 19 80 60 | Phosphorous acid, in solid or liquid (aqueous) forms, also denominated phosphonic acid, usually falling under Chemical Abstracts Service ('CAS') numbers 13598-36-2 and 10294-56-1. The Customs and Statistics (‘CUS’) numbers usually corresponding to this product are 0021895-1 and 0043878-8. | 5.3% | TARIC | |
| 2811 19 80 90 | Other | 5.3% | TARIC | |
| Other inorganic oxygen compounds of non-metals | ||||
| 2811 21 00 00 | Carbon dioxide | 5.5% | TARIC | |
| 2811 22 | Silicon dioxide | TARIC | ||
| 2811 22 00 15 | Amorphous silicon dioxide (CAS RN 60676-86-0), - in the form of powder - of a purity by weight of 99,0 % or more - with a median grain size of 0,7 μm or more, but not more than 2,1 μm - where 70 % of the particles have a diameter of not more than 3 μm | 4.6% | TARIC | |
| 2811 22 00 90 | Other | 4.6% | TARIC | |
| 2811 29 | Other | TARIC | ||
| 2811 29 05 00 | Sulphur dioxide | 5.5% | TARIC | |
| 2811 29 10 | Sulphur trioxide (sulphuric anhydride); diarsenic trioxide | TARIC | ||
| 2811 29 10 10 | Diarsenic trioxide (CAS RN 1327-53-3) | 4.6% | TARIC | |
| 2811 29 10 90 | Other | 4.6% | TARIC | |
| 2811 29 30 00 | Nitrogen oxides | 5% | TARIC | |
| 2811 29 90 | Other | TARIC | ||
| 2811 29 90 10 | Tellurium dioxide (CAS RN 7446-07-3) | 5.3% | TARIC | |
| 2811 29 90 20 | Diarsenic pentaoxide (CAS RN 1303-28-2) | 5.3% | TARIC | |
| 2811 29 90 90 | Other | 5.3% | TARIC | |
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Source: European Commission (DG TAXUD), TARIC and Combined Nomenclature data as extracted on 1 October 2026. Heading 2811 in the TARIC consultation
Only the third-country duty is shown. Not shown: tariff preferences, quotas, suspensions, anti-dumping and other additional duties, import controls and the legal notes. The TARIC consultation lists the measures of each code.
This page is general information, not legal advice and not a classification decision. Tariff texts and rates change: check the publisher's current schedule, and ask the customs authority for a binding ruling where the answer matters.