C
SECTION C — CHEMISTRY AND METALLURGY
  
CHEMISTRY
 C05
MANUFACTURE OF FERTILISERS
 C05

Note(s)

An ingredient in a mixture of fertilisers, or a single fertiliser which contains more than one of the chemical elements on which the division 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.

When classifying a mixture of different fertilisers, or fertilisers with non-fertilisers the symbols appropriate to each separate ingredient of the mixture should be shown after the symbol appropriate to the mixture, in the manner indicated in para. 61 of the Guide. For example a mixture of Thomas phosphate with an organic phosphatic fertiliser would bear symbols C05B 21/00 // C05B 5/00, C05B 15/00; a mixture of Thomas phosphate sodium nitrate, and a potassium compound, the symbol C05G 1/04 // C05B 5/00; C05C 5/02; C05D 1/00; a mixture of organic phosphatic fertiliser with phenol (as a pesticide) the symbols C05G 3/02 // C05B 15/00; A01N 9/26; and a mixture of urea-formaldehyde fertilising condensate with a particular alkyl sulphonate as wetting agent, the symbols C05G 3/06 // C05C 9/02; B01F 17/02. Insignificant amounts, e.g. of impurities in a fertiliser, are disregarded.

 C05D
INORGANIC FERTILISERS NOT COVERED BY SUB-CLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
 C05D 1/00
Fertilisers containing potassium (C05D 7/00 takes precedence)
 C05D 1/02
·  Manufacture from potassium chloride or sulphate or double or mixed salts thereof
 C05D 1/04
·  from minerals or volcanic rocks
 C05D 3/00
Calcareous fertilisers (C05D 7/00 takes precedence)
 C05D 3/02
·  from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium compounds
 C05D 3/04
·  from blast-furnace slag or other slags containing lime or calcium silicates
 C05D 5/00
Fertilisers containing magnesium (C05D 7/00 takes precedence)
 C05D 7/00
Fertilisers producing carbon dioxide
 C05D 9/00
Other inorganic fertilisers
 C05D 9/02
·  containing trace elements
 C05D 11/00
Mixtures of fertilisers, each belonging to sub-class C05D