DIFF Subgroup
B01J 27/06 Halogens; Compounds thereof
Introduced: July 1974
Full Title
Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds > Halogens; Compounds thereof
IPC and CPC are identically structured here. All 6 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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- B01J 27/125 with scandium, yttrium, aluminium, gallium, indium or thallium since 1985 IPC+CPC Available in IPC and CPC
- B01J 27/128 with iron group metals or platinum group metals since 1985 IPC+CPC Available in IPC and CPC
- B01J 27/132 with chromium, molybdenum, tungsten or polonium since 1985 IPC+CPC Available in IPC and CPC
- B01J 27/135 with titanium, zirconium, hafnium, germanium, tin or lead since 1985 IPC+CPC Available in IPC and CPC
- B01J 27/138 with alkaline earth metals, magnesium, beryllium, zinc, cadmium or mercury since 1985 IPC+CPC Available in IPC and CPC