C
SECTION C — CHEMISTRY AND METALLURGY
 C

Note(s)

Definitions for Section C:

  • Alkali metals: Li, Na, K, Rb, Cs, Fr
  • Alkaline earth metals: Ca, Sr, Ba, Ra
  • Lanthanides: elements with atomic numbers 57 to 71 inclusive
  • Rare earths: Sc, Y, Lanthanides
  • Actinides: elements with atomic numbers 89 to 103 inclusive
  • Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W
  • Halogens: F, Cl, Br, I, At
  • Noble gases: He, Ne, Ar, Kr, Xe, Rn
  • Platinum group: Os, Ir, Pt, Ru, Rh, Pd
  • Noble metals: Ag, Au, Platinum group
  • Light metals: alkali metals, alkaline earth metals, Be, Al, Mg
  • Heavy metals: metals other than light metals
  • Iron group: Fe, Co, Ni
  • Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens
  • Metals: elements other than non-metals
  • Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

  
CHEMISTRY
 C01
INORGANIC CHEMISTRY (obtaining metal compounds from mixtures, e.g. ores, which are intermediate compounds in a metallurgical process for obtaining a free metal C21B, C22B; production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis C25B)
 C01

Note(s)

In the absence of an indication to the contrary, a compound is classified in the last appropriate place within this class. [3]

 C01G
COMPOUNDS CONTAINING METALS NOT COVERED BY SUB-CLASSES C01D OR C01F (metal hydrides C01B 6/00; salts of oxyacids of halogens C01B 11/00; peroxides, salts of peroxyacids C01B 15/00; thiosulphates, dithionites, polythionates C01B 17/64; compounds containing selenium or tellurium C01B 19/00; binary compounds of nitrogen with metals C01B 21/06; azides C01B 21/08; metal amides C01B 21/092; nitrites C01B 21/50; phosphides C01B 25/08; salts of oxyacids of phosphorus C01B 25/16; carbides C01B 31/30; compounds containing silicon C01B 33/00; compounds containing boron C01B 35/00; cyanides C01C 3/08; salts of cyanic acid C01C 3/14; salts of cyanamide C01C 3/16; thiocyanates C01C 3/20)
 C01G 1/00
Methods of preparing compounds of metals not provided for in sub-classes C01B, C01C, C01D, C01F, in general (electrolytic production of inorganic compounds C25B 1/00)  [2]
 C01G 1/02
·  oxides
 C01G 1/04
·  carbonyls
 C01G 1/06
·  halides
 C01G 1/08
·  nitrates
 C01G 1/10
·  sulphates
 C01G 1/12
·  sulphides
 C01G 1/14
·  sulphites
 C01G 3/00
Compounds of copper
 C01G 3/02
·  Oxides; Hydroxides
 C01G 3/04
·  Halides
 C01G 3/05
·  ·  Chlorides  [3]
 C01G 3/06
·  ·  Oxychlorides
 C01G 3/08
·  Nitrates
 C01G 3/10
·  Sulphates
 C01G 3/12
·  Sulphides
 C01G 3/14
·  Complexes with ammonia
 C01G 5/00
Compounds of silver
 C01G 5/02
·  Halides  [3]
 C01G 7/00
Compounds of gold
 C01G 9/00
Compounds of zinc
 C01G 9/02
·  Oxides; Hydroxides
 C01G 9/03
·  ·  Processes of production using dry methods, e.g. vapour phase processes  [3]
 C01G 9/04
·  Halides
 C01G 9/06
·  Sulphates
 C01G 9/08
·  Sulphides
 C01G 11/00
Compounds of cadmium
 C01G 11/02
·  Sulphides  [3]
 C01G 13/00
Compounds of mercury
 C01G 13/02
·  Oxides
 C01G 13/04
·  Halides
 C01G 15/00
Compounds of gallium, indium, or thallium
 C01G 17/00
Compounds of germanium
 C01G 17/02
·  Germanium dioxide
 C01G 17/04
·  Halides of germanium
 C01G 19/00
Compounds of tin
 C01G 19/02
·  Oxides
 C01G 19/04
·  Halides
 C01G 19/06
·  ·  Stannous chloride
 C01G 19/08
·  ·  Stannic chloride
 C01G 21/00
Compounds of lead
 C01G 21/02
·  Oxides
 C01G 21/04
·  ·  Lead suboxide (Pb2O)
 C01G 21/06
·  ·  Lead monoxide (PbO)
 C01G 21/08
·  ·  Lead dioxide (PbO2)
 C01G 21/10
·  ·  Red lead (Pb3O4)
 C01G 21/12
·  Hydroxides
 C01G 21/14
·  Carbonates
 C01G 21/16
·  Halides
 C01G 21/18
·  Nitrates
 C01G 21/20
·  Sulphates
 C01G 21/21
·  Sulphides  [3]
 C01G 21/22
·  Plumbates; Plumbites
 C01G 23/00
Compounds of titanium
 C01G 23/02
·  Halides of titanium
 C01G 23/04
·  Oxides; Hydroxides
 C01G 23/047
·  ·  Titanium dioxide  [3]
 C01G 23/053
·  ·  ·  Producing by wet processes, e.g. hydrolysing titanium salts  [3]
 C01G 23/06
( transferred to C01G 23/053 )
 C01G 23/07
·  ·  ·  Producing by vapour phase processes, e.g. halide oxidation  [3]
 C01G 23/08
·  ·  ·  Drying; Calcining
 C01G 25/00
Compounds of zirconium
 C01G 25/02
·  Oxides
 C01G 25/04
·  Halides
 C01G 25/06
·  Sulphates
 C01G 27/00
Compounds of hafnium
 C01G 27/02
·  Oxides
 C01G 27/04
·  Halides
 C01G 27/06
·  Sulphates
 C01G 28/00
Compounds of arsenic  [3]
 C01G 28/02
·  Arsenates; Arsenites  [3]
 C01G 29/00
Compounds of bismuth
 C01G 30/00
Compounds of antimony  [3]
 C01G 30/02
·  Antimonates; Antimonites  [3]
 C01G 31/00
Compounds of vanadium
 C01G 31/02
·  Oxides  [3]
 C01G 31/04
·  Halides  [3]
 C01G 33/00
Compounds of niobium
 C01G 35/00
Compounds of tantalum
 C01G 35/02
·  Halides  [3]
 C01G 37/00
Compounds of chromium
 C01G 37/02
·  Oxides or hydrates thereof
 C01G 37/027
·  ·  Chromium dioxide  [3]
 C01G 37/033
·  ·  Chromium trioxide; Chromic acid  [3]
 C01G 37/04
·  Chromium halides
 C01G 37/06
·  ·  Chromylhalides
 C01G 37/08
·  Chromium sulphates
 C01G 37/10
·  ·  Chrome alum
 C01G 37/12
( transferred to C01G 37/033 )
 C01G 37/14
·  Chromates; Bichromates
 C01G 39/00
Compounds of molybdenum
 C01G 39/02
·  Oxides; Hydroxides  [3]
 C01G 39/04
·  Halides  [3]
 C01G 39/06
·  Sulphides  [3]
 C01G 41/00
Compounds of tungsten
 C01G 41/02
·  Oxides; Hydroxides  [3]
 C01G 41/04
·  Halides  [3]
 C01G 43/00
Compounds of uranium
 C01G 43/01
·  Oxides; Hydroxides  [3]
 C01G 43/02
( transferred to C01G 43/01 )
 C01G 43/025
·  ·  Uranium dioxide  [3]
 C01G 43/04
·  Halides of uranium
 C01G 43/06
·  ·  Fluorides
 C01G 43/08
·  ·  Chlorides
 C01G 43/10
·  ·  Bromides
 C01G 43/12
·  ·  Iodides
 C01G 45/00
Compounds of manganese
 C01G 45/02
·  Oxides; Hydroxides
 C01G 45/04
·  Carbonyls
 C01G 45/06
·  Halides
 C01G 45/08
·  Nitrates
 C01G 45/10
·  Sulphates
 C01G 45/12
·  Manganates; Permanganates
 C01G 47/00
Compounds of rhenium
 C01G 49/00
Compounds of iron
 C01G 49/02
·  Oxides; Hydroxides
 C01G 49/04
·  ·  Ferrous oxide (FeO)
 C01G 49/06
·  ·  Ferric oxide (Fe2O3)
 C01G 49/08
·  ·  Ferroso-ferric oxide (Fe3O4)
 C01G 49/10
·  Halides
 C01G 49/12
·  Sulphides
 C01G 49/14
·  Sulphates
 C01G 49/16
·  Carbonyls
 C01G 51/00
Compounds of cobalt
 C01G 51/02
·  Carbonyls
 C01G 51/04
·  Oxides; Hydroxides
 C01G 51/06
·  Carbonates
 C01G 51/08
·  Halides
 C01G 51/10
·  Sulphates
 C01G 51/12
·  Complexes with ammonia
 C01G 53/00
Compounds of nickel
 C01G 53/02
·  Carbonyls
 C01G 53/04
·  Oxides; Hydroxides
 C01G 53/06
·  Carbonates
 C01G 53/08
·  Halides
 C01G 53/09
·  ·  Chlorides  [3]
 C01G 53/10
·  Sulphates
 C01G 53/11
·  Sulphides  [3]
 C01G 53/12
·  Complexes with ammonia
 C01G 55/00
Compounds of ruthenium, rhodium, palladium, osmium, iridium, or platinum
 C01G 56/00
Compounds of transuranic elements
 C01G 57/00
Compounds of metals not covered elsewhere in this sub-class