2846.90 | 220 | - Lanthanum oxide |
2846.90 | 290 | - Other |
28.47 | | |
2847.00 | 000 | Hydrogen peroxide, whether or not solidified with urea |
28.49 | | Carbides, whether or not chemically defined |
2849.10 | 000 | Of calcium |
2849.20 | | Of silicon |
2849.20 | 010 | - Sized grains |
2849.20 | 090 | - Other |
2849.90 | | Other |
2849.90 | 010 | - Boron carbide, niobium carbide and tantalum carbide |
2849.90 | 090 | - Other |
28.50 | | |
2850.00 | 000 | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49 |
28.52 | | Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams |
2852.10 | | Chemically defined |
2852.10 | 100 | 1 Certified reference materials |
2852.10 | | 2 Inorganic compounds and articles thereof: |
2852.10 | 210 | (1) Sulphates |
2852.10 | 220 | (2) Chemical preparations for photographic uses (other than varnishes, glues, adhesives and similar preparations) ; unmixed products for photographic uses, put up in measured portions or put up for retail sale in a form ready for use |
2852.10 | | (3) Other |
2852.10 | 291 | - Mercury carbides |
2852.10 | 299 | - Other |