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
 C05
FERTILISERS; MANUFACTURE THEREOF (soil-conditioning compositions or soil-stabilising compositions, e.g. mulches, C09K 17/00)
 C05

Note(s)

  1. An ingredient in a mixture of fertilisers, or a single fertiliser which contains more than one of the chemical elements on which the subdivision into sub-classes is based, is classified only in the first of the appropriate sub-classes. Thus, a nitrophosphate or an ammoniated superphosphate is classified in C05B but not in C05C, magnesium phosphate is classified in C05B but not in C05D, and calcium cyanamide in C05C but not in C05D.
  2. In this class it is desirable to add, in conformity with paragraph 80 of the Guide, after the double oblique stroke the symbols relating to complementary information concerning individual constituents of a technical subject which is already classified as such. This complementary information concerns the indication of ingredients of a mixture of different fertilisers or of fertilisers with non-fertilisers.
 C05B
PHOSPHATIC FERTILISERS
 C05B 1/00
Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulphuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
 C05B 1/02
·  Superphosphates
 C05B 1/04
·  Double-superphosphate; Triple-superphosphate Other fertilisers based essentially on monocalcium phosphate
 C05B 1/06
·  Ammoniation of superphosphates (fertilisers based essentially on ammonium orthophosphate C05B 7/00)
 C05B 1/10
·  Apparatus for the manufacture of superphosphates
 C05B 3/00
Fertilisers based essentially on di-calcium phosphate (C05B 11/00 takes precedence)
 C05B 5/00
Thomas phosphate; Other slag phosphates
 C05B 7/00
Fertilisers based essentially on alkali or ammonium orthophosphates (C05B 11/00 takes precendence)
 C05B 9/00
Fertilisers based essentially on phosphates or double phosphates of magnesium (C05B 11/00 takes precedence)
 C05B 11/00
Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
 C05B 11/02
·  Pretreatment
 C05B 11/04
·  using mineral acid
 C05B 11/06
·  ·  using nitric acid (nitrophosphates)
 C05B 11/08
·  ·  using sulphuric acid
 C05B 11/10
·  ·  using orthophosphoric acid
 C05B 11/12
·  ·  using aqueous hydrochloric acid
 C05B 11/14
·  ·  using wet gaseous acids
 C05B 11/16
·  using alkaline lyes
 C05B 13/00
Fertilisers produced by pyrogenic processes from phosphatic materials
 C05B 13/02
·  from rock phosphates (C05B 13/06 takes precedence)
 C05B 13/04
·  from metallic phosphorus compounds, e.g. ferro-phosphorus
 C05B 13/06
·  Alkali and alkaline earth meta- or polyphosphate fertilisers
 C05B 15/00
Organic phosphatic fertilisers (bone meal C05B 17/00)
 C05B 17/00
Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
 C05B 17/02
·  containing manganese
 C05B 19/00
Granulation or pelletisation of phosphatic fertilisers other than slag (granulating apparatus B01J 2/00; granulating slag C04B)
 C05B 19/02
·  of superphosphates or mixtures containing them
 C05B 21/00
Mixtures of phosphatic fertilisers