| 2810.00 | 000 | Oxides of boron; boric acids |
| 28.11 | | Other inorganic acids and other inorganic oxygen compounds of non-metals |
| 28.11 | | Other inorganic acids |
| 2811.11 | 000 | Hydrogen fluoride (hydrofluoric acid) |
| 2811.12 | 000 | Hydrogen cyanide (hydrocyanic acid) |
| 2811.19 | | Other |
| 2811.19 | 100 | - Hydrobromic acid |
| 2811.19 | 900 | - Other |
| 2811.19 | | Other inorganic oxygen compounds of non-metals : |
| 2811.21 | 000 | Carbon dioxide |
| 2811.22 | 000 | Silicon dioxide |
| 2811.29 | | Other |
| 2811.29 | | 1 Dinitrogen tetroxide and Sulphur dioxide |
| 2811.29 | 110 | - Dinitrogen tetroxide |
| 2811.29 | 120 | - Sulphur dioxide |
| 2811.29 | 900 | 2 Other |
| 2811.29 | | III.- HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS |
| 28.12 | | Halides and halide oxides of non-metals |
| 28.12 | | Chlorides and chloride oxides |
| 2812.11 | 000 | Carbonyl dichloride (phosgene) |
| 2812.12 | 000 | Phosphorus oxychloride |
| 2812.13 | 000 | Phosphorus trichloride |
| 2812.14 | 000 | Phosphorus pentachloride |
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