CPC Subgroup Additional Only
C01B 2210/0043 Impurity removed
Full Title
Purification or separation of specific gases > Impurity removed
21 direct subcodes
Child Classifications
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- C01B 2210/0045 Oxygen
- C01B 2210/0046 Nitrogen
- C01B 2210/0048 Air
- C01B 2210/005 Carbon monoxide
- C01B 2210/0051 Carbon dioxide
- C01B 2210/0053 Hydrogen
- C01B 2210/0054 Hydrogen halides
- C01B 2210/0062 Water
- C01B 2210/0064 Hydrogen sulfide
- C01B 2210/0065 Ammonia
- C01B 2210/0067 Hydrogen cyanide
- C01B 2210/0068 Organic compounds
- C01B 2210/0071 Sulfur oxides
- C01B 2210/0073 Sulfur halides
- C01B 2210/0075 Nitrogen oxides
- C01B 2210/0076 Nitrogen halides
- C01B 2210/0078 Noble gases
- C01B 2210/0089 Peroxides
- C01B 2210/0092 Ozone
- C01B 2210/0093 Metals or metal compounds