|  | C |
SECTION C — CHEMISTRY AND METALLURGY

CHEMISTRY

|  | C01 |
INORGANIC CHEMISTRY (obtaining metal compounds by metallurgical processes Fulltext... Hierarchy... Expanded...C21B, Fulltext... Hierarchy... Expanded...C22B; production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis Fulltext... Hierarchy... Expanded...C25B)

|  | C01B |
NON-METALLIC ELEMENTS, METALLOIDS AND THEIR COMPOUNDS, EXCEPT THOSE COVERED BY SUB-CLASS Fulltext... Hierarchy... Expanded...C01C (arsenic, antimony Fulltext... Hierarchy... Expanded...C22B)

|  | C01B |
Note(s) In the absence of a reference to the contrary, a compound is classified in Fulltext... Hierarchy... Expanded...C01B the last appropriate place. Group Fulltext... Hierarchy... Expanded...C01B 21/10 takes precedence over the groups of this sub-class.

|  | C01C |
AMMONIA AND CYANOGEN AND THEIR COMPOUNDS (Fulltext... Hierarchy... Expanded...C01B takes precedence in respect of salts of oxyacids of halogens Fulltext... Hierarchy... Expanded...C01B 11/00; peroxides, persalts Fulltext... Hierarchy... Expanded...C01B 15/00; compounds containing selenium or tellurium Fulltext... Hierarchy... Expanded...C01B 19/00; azides Fulltext... Hierarchy... Expanded...C01B 21/08; imido and amido compounds other than cyanamide and its salts Fulltext... Hierarchy... Expanded...C01B 21/10; nitrites Fulltext... Hierarchy... Expanded...C01B 21/50; phosphides Fulltext... Hierarchy... Expanded...C01B 25/08; salts of oxyacids of phosphorus Fulltext... Hierarchy... Expanded...C01B 25/16; arsenic Fulltext... Hierarchy... Expanded...C01B 27/00; antimony Fulltext... Hierarchy... Expanded...C01B 29/00, silicates Fulltext... Hierarchy... Expanded...C01B 33/20; boron Fulltext... Hierarchy... Expanded...C01B 35/00)

|  | C01D |
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM (Fulltext... Hierarchy... Expanded...C01C 3/14, Fulltext... Hierarchy... Expanded...C01F, Fulltext... Hierarchy... Expanded...C01G take precedence; metal hydrides Fulltext... Hierarchy... Expanded...C01B 6/00; salts of oxyacids of halogens Fulltext... Hierarchy... Expanded...C01B 11/00; peroxides, salts of peroxyacids Fulltext... Hierarchy... Expanded...C01B 15/00; sulphides Fulltext... Hierarchy... Expanded...C01B 17/22; thiosulphates, dithionites, polythionates Fulltext... Hierarchy... Expanded...C01B 17/64; compounds containing selenium or tellurium Fulltext... Hierarchy... Expanded...C01B 19/00; nitrides Fulltext... Hierarchy... Expanded...C01B 21/06; azides Fulltext... Hierarchy... Expanded...C01B 21/08; imido or amido compounds Fulltext... Hierarchy... Expanded...C01B 21/10; nitrites Fulltext... Hierarchy... Expanded...C01B 21/50; phosphides Fulltext... Hierarchy... Expanded...C01B 25/08; salts of oxyacids of phosphorus Fulltext... Hierarchy... Expanded...C01B 25/16; compounds containing arsenic Fulltext... Hierarchy... Expanded...C01B 27/00; compounds containing antimony Fulltext... Hierarchy... Expanded...C01B 29/00; carbides Fulltext... Hierarchy... Expanded...C01B 31/30; compounds containing silicon Fulltext... Hierarchy... Expanded...C01B 33/00; compounds containing boron Fulltext... Hierarchy... Expanded...C01B 35/00; cyanides Fulltext... Hierarchy... Expanded...C01C 3/08; salts of cyanamide Fulltext... Hierarchy... Expanded...C01C 3/16; thiocyanates Fulltext... Hierarchy... Expanded...C01C 3/20)

|  | C01F |
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, AND OF THE RARE-EARTH METALS (Fulltext... Hierarchy... Expanded...C01C 3/14 takes precedence; metal hydrides Fulltext... Hierarchy... Expanded...C01B 6/00; salts of oxyacids of halogens Fulltext... Hierarchy... Expanded...C01B 11/00; salts of peracids, metal peroxides Fulltext... Hierarchy... Expanded...C01B 15/00; sulphides or polysulphides of magnesium, calcium, strontium, or barium Fulltext... Hierarchy... Expanded...C01B 17/42; thiosulphates, dithionites, polythionates Fulltext... Hierarchy... Expanded...C01B 17/64; compounds containing selenium or tellurium Fulltext... Hierarchy... Expanded...C01B 19/00; nitrides Fulltext... Hierarchy... Expanded...C01B 21/06; azides Fulltext... Hierarchy... Expanded...C01B 21/08; imido or amido compounds Fulltext... Hierarchy... Expanded...C01B 21/10; nitrites Fulltext... Hierarchy... Expanded...C01B 21/50; phosphides Fulltext... Hierarchy... Expanded...C01B 25/08; salts of oxyacids of phosphorus Fulltext... Hierarchy... Expanded...C01B 25/16; compounds containing arsenic Fulltext... Hierarchy... Expanded...C01B 27/00; compounds containing antimony Fulltext... Hierarchy... Expanded...C01B 29/00; carbides Fulltext... Hierarchy... Expanded...C01B 31/30; compounds containing silicon Fulltext... Hierarchy... Expanded...C01B 33/00; compounds containing boron Fulltext... Hierarchy... Expanded...C01B 35/00; cyanides Fulltext... Hierarchy... Expanded...C01C 3/08; salts of cyanamide Fulltext... Hierarchy... Expanded...C01C 3/16; thiocyanates Fulltext... Hierarchy... Expanded...C01C 3/20)

|  | C01F |
Note(s) Compounds containing at least two different metals are classified in the last appropriate place in Fulltext... Hierarchy... Expanded...C01F or Fulltext... Hierarchy... Expanded...C01G

|  | C01G |
COMPOUNDS OF METALS NOT COVERED BY SUB-CLASSES Fulltext... Hierarchy... Expanded...C01B TO Fulltext... Hierarchy... Expanded...C01F (Fulltext... Hierarchy... Expanded...C01C 3/14 takes precedence; metal hydrides Fulltext... Hierarchy... Expanded...C01B 6/00; salts of oxyacids of halogens Fulltext... Hierarchy... Expanded...C01B 11/00; salts of peracids, peroxides Fulltext... Hierarchy... Expanded...C01B 15/00; thiosulphates, dithionites, polythionates Fulltext... Hierarchy... Expanded...C01B 17/64; compounds containing selenium or tellurium Fulltext... Hierarchy... Expanded...C01B 19/00; nitrides Fulltext... Hierarchy... Expanded...C01B 21/06; azides Fulltext... Hierarchy... Expanded...C01B 21/08; imido or amido compounds Fulltext... Hierarchy... Expanded...C01B 21/10; nitrites Fulltext... Hierarchy... Expanded...C01B 21/50; phosphides Fulltext... Hierarchy... Expanded...C01B 25/08; salts of oxyacids of phosphorus Fulltext... Hierarchy... Expanded...C01B 25/16; compounds containing arsenic Fulltext... Hierarchy... Expanded...C01B 27/00; compounds containing antimony Fulltext... Hierarchy... Expanded...C01B 29/00; carbides Fulltext... Hierarchy... Expanded...C01B 31/30; compounds containing silicon Fulltext... Hierarchy... Expanded...C01B 33/00; compounds containing boron Fulltext... Hierarchy... Expanded...C01B 35/00; cyanides Fulltext... Hierarchy... Expanded...C01C 3/08; salts of cyanamide Fulltext... Hierarchy... Expanded...C01C 3/16; thiocyanates Fulltext... Hierarchy... Expanded...C01C 3/20)

|  | C01G |
Note(s) Compounds containing at least two different metals are classified in the last appropriate place in Fulltext... Hierarchy... Expanded...C01F or Fulltext... Hierarchy... Expanded...C01G.