| 281111 |
Other inorganic acids |
| 281111 |
Hydrogen fluoride (hydrofluoric acid) |
| 281112 |
Hydrogen cyanide (hydrocyanic acid) |
| 28111910 |
Hydrogen bromide (hydrobromic acid) |
| 2811198040 |
Arsenic acid (CAS RN 7778-39-4) |
| 2811198050 |
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) |
| 281121 |
Other inorganic oxygen compounds of non-metals |
| 281121 |
Carbon dioxide |
| 281122 |
Silicon dioxide |
| 2811220010 |
Silicon dioxide (CAS RN 7631-86-9) in the form of powder, for use in the manufacture of high performance liquid chromatography columns (HPLC) and sample preparation cartridges |
| 2811220015 |
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|?m or more, but not more than 2,1|?m
-|where 70|% of the particles have a diameter of not more than |
| 2811220040 |
Silica filler in the form of granules, with a purity by weight of 97|% or more of silicon dioxide |
| 28112905 |
Sulphur dioxide |
| 28112910 |
Sulphur trioxide (sulphuric anhydride); diarsenic trioxide |
| 2811291010 |
Diarsenic trioxide (CAS RN 1327-53-3) |
| 28112930 |
Nitrogen oxides |
| 2811299010 |
Tellurium dioxide (CAS|RN 7446-07-3) |
| 2811299020 |
Diarsenic pentaoxide (CAS RN 1303-28-2) |