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]

 C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS (metal hydrides C01B 6/00; salts of oxyacids of halogens C01B 11/00; peroxides, salts of peroxyacids C01B 15/00; sulphides or polysulphides of magnesium, calcium, strontium, or barium C01B 17/42; 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)
 C01F 1/00
Methods of preparing compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, and the rare earths, in general
 C01F 3/00
Compounds of beryllium
 C01F 3/02
·  Oxides; Hydroxides  [3]
 C01F 5/00
Compounds of magnesium
 C01F 5/02
·  Magnesia
 C01F 5/04
·  ·  by oxidation of metallic magnesium
 C01F 5/06
·  ·  by thermal decomposition of magnesium compounds (calcining magnesite or dolomite C04B 3/00)
 C01F 5/08
·  ·  ·  by calcining magnesium hydroxide
 C01F 5/10
·  ·  ·  by thermal decomposition of magnesium chloride with water vapour
 C01F 5/12
·  ·  ·  by thermal decomposition of magnesium sulphate, with or without reduction
 C01F 5/14
·  Magnesium hydroxide
 C01F 5/16
·  ·  by treating magnesia, e.g. calcined dolomite, with water or solutions of salts not containing magnesium
 C01F 5/20
·  ·  by precipitation from solutions of magnesium salts with ammonia
 C01F 5/22
·  ·  from magnesium compounds with alkali hydroxides or alkaline-earth oxides or hydroxides
 C01F 5/24
·  Magnesium carbonates
 C01F 5/26
·  Magnesium halides
 C01F 5/28
·  ·  Fluorides
 C01F 5/30
·  ·  Chlorides
 C01F 5/32
·  ·  ·  Preparation of anhydrous magnesium chloride by chlorinating magnesium compounds
 C01F 5/34
·  ·  ·  Dehydrating magnesium chloride containing water of crystallisation
 C01F 5/36
·  ·  Bromides
 C01F 5/38
·  Magnesium nitrates
 C01F 5/40
·  Magnesium sulphates (double sulphates of magnesium with sodium or potassium C01D 5/12, with other alkali metals C01D 15/06, C01D 17/00)
 C01F 5/42
·  Magnesium sulphites
 C01F 7/00
Compounds of aluminium
 C01F 7/02
·  Aluminium oxide; Aluminium hydroxide; Aluminates
 C01F 7/04
·  ·  Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
 C01F 7/06
·  ·  ·  by treating aluminous minerals with alkali hydroxide
 C01F 7/08
·  ·  ·  by treating aluminous minerals with sodium carbonate
 C01F 7/10
·  ·  ·  by treating aluminous minerals with alkali sulphates and reducing agents
 C01F 7/12
·  ·  ·  Alkali metal aluminates from alkaline-earth metal aluminates
 C01F 7/14
·  ·  ·  Aluminium oxide or hydroxide from alkali metal aluminates
 C01F 7/16
·  ·  Preparation of alkaline-earth metal aluminates; Aluminium oxide or hydroxide therefrom
 C01F 7/18
·  ·  ·  Aluminium oxide or hydroxide from alkaline-earth metal aluminates
 C01F 7/20
·  ·  Preparation of aluminium oxide or hydroxide from aluminous ores with acids or salts
 C01F 7/22
·  ·  ·  with halides
 C01F 7/24
·  ·  ·  with nitric acid or nitrogen oxides
 C01F 7/26
·  ·  ·  with sulphuric acids or sulphates
 C01F 7/28
·  ·  ·  with sulphurous acid
 C01F 7/30
·  ·  Preparation of aluminium oxide or hydroxide by thermal decompositon of aluminium compounds
 C01F 7/32
·  ·  ·  of sulphates
 C01F 7/34
·  ·  Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
 C01F 7/36
·  ·  ·  from organic aluminium salts
 C01F 7/38
·  ·  Preparation of aluminium oxide by thermal reduction of aluminous minerals
 C01F 7/40
·  ·  ·  in the presence of aluminium sulphide
 C01F 7/42
·  ·  Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation
 C01F 7/44
·  ·  Dehydration of aluminium hydroxide
 C01F 7/46
·  ·  Purification of aluminium hydroxide or oxide
 C01F 7/48
·  Aluminium halides
 C01F 7/50
·  ·  Fluorides
 C01F 7/52
·  ·  ·  Double compounds containing both fluorine and other acid groups
 C01F 7/54
·  ·  ·  Double compounds containing both aluminium and alkali metals or alkaline-earth metals
 C01F 7/56
·  ·  Chlorides (containing fluorine C01F 7/52)
 C01F 7/58
·  ·  ·  Preparation of anhydrous aluminium chloride
 C01F 7/60
·  ·  ·  ·  from oxygen-containing aluminium compounds
 C01F 7/62
·  ·  ·  Purification
 C01F 7/64
·  ·  Bromides (containing fluorine C01F 7/52)
 C01F 7/66
·  Aluminium nitrates (containing fluorine C01F 7/52)
 C01F 7/68
·  Aluminium compounds containing sulphur (containing fluorine C01F 7/52)
 C01F 7/70
·  ·  Sulphides
 C01F 7/72
·  ·  Sulphites
 C01F 7/74
·  ·  Sulphates
 C01F 7/76
·  ·  ·  Double salts, e.g. alum
 C01F 11/00
Compounds of calcium, strontium, or barium (C01F 7/00 takes precedence)
 C01F 11/02
·  Oxides or hydroxides (production of lime C04B 1/00)
 C01F 11/04
·  ·  by thermal decomposition
 C01F 11/06
·  ·  ·  of carbonates
 C01F 11/08
·  ·  by reduction of sulphates
 C01F 11/10
·  ·  from sulphides
 C01F 11/12
·  ·  from silicates
 C01F 11/16
·  ·  Purification
 C01F 11/18
·  Carbonates
 C01F 11/20
·  Halides
 C01F 11/22
·  ·  Fluorides
 C01F 11/24
·  ·  Chlorides
 C01F 11/26
·  ·  ·  from sulphides
 C01F 11/28
·  ·  ·  by chlorination of alkaline-earth metal compounds
 C01F 11/30
·  ·  ·  Concentrating; Dehydrating; Preventing the absorption of moisture or caking
 C01F 11/32
·  ·  ·  Purification
 C01F 11/34
·  ·  Bromides
 C01F 11/36
·  Nitrates
 C01F 11/38
·  ·  Preparation with nitric acid or nitrogen oxides
 C01F 11/40
·  ·  Preparation by double decomposition with nitrates
 C01F 11/42
·  ·  Double salts (with magnesium C01F 5/38)
 C01F 11/44
·  ·  Concentrating; Crystallising; Dehydrating; Preventing the absorption of moisture or caking
 C01F 11/46
·  Sulphates (dehydration of gypsum C04B 11/02)
 C01F 11/48
·  Sulphites
 C01F 13/00
Compounds of radium
 C01F 15/00
Compounds of thorium
 C01F 17/00
Compounds of the rare-earth metals, i.e. scandium, yttrium, lanthanum, and the group of the lanthanides