| 2840.11 | 000 | Anhydrous |
| 2840.19 | 000 | Other |
| 2840.20 | 000 | Other borates |
| 2840.30 | 000 | Peroxoborates (perborates) |
| 2841.30 | 000 | Sodium dichromate |
| 2841.50 | | Other chromates and dichromates; peroxochromates |
| 2841.50 | 010 | - Chromates of zinc or of lead |
| 2841.50 | 090 | - Other |
| 2841.50 | | Manganites, manganates and permanganates : |
| 2841.61 | 000 | Potassium permanganate |
| 2841.69 | 000 | Other |
| 2841.70 | 000 | Molybdates |
| 2841.80 | 000 | Tungstates (wolframates) |
| 2841.90 | | Other |
| 2841.90 | 010 | - Aluminates |
| 2841.90 | 090 | - Other |
| 2842.10 | 000 | Double or complex silicates, including aluminosilicates whether or not chemically defined |
| 2842.90 | | Other |
| 2842.90 | 010 | - Fulminates, cyanates and thiocyanates |
| 2842.90 | 090 | - Other |
| 2842.90 | | VI.- MISCELLANEOUS |
| 2843.10 | 000 | Colloidal precious metals |
| 2843.10 | | Silver compounds : |