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.
 C05C
NITROGENOUS FERTILISERS
 C05C 1/00
Ammonium nitrate fertilisers
 C05C 1/02
·  Granulation (apparatus B01J 2/00); Pelletisation; Stabilisation; Colouring
 C05C 3/00
Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
 C05C 5/00
Fertilisers containing other nitrates
 C05C 5/02
·  containing sodium or potassium nitrate
 C05C 5/04
·  containing calcium nitrate
 C05C 7/00
Fertilisers containing calcium or other cyanamides
 C05C 7/02
·  Granulation (apparatus B01J 2/00); Pelletisation; De-gassing; Hydrating; Hardening; Stabilisation; Oiling
 C05C 9/00
Fertilisers containing urea or urea compounds
 C05C 9/02
·  containing urea-formaldehyde condensates
 C05C 11/00
Other nitrogenous fertilisers
 C05C 13/00
Mixtures of nitrogenous fertilisers