DIFF Subgroup
B01J 27/04 Sulfides
Introduced: July 1974
Full Title
Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds > Sulfur, selenium or tellurium; Compounds thereof > Sulfides
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1985.
Child Classifications
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- B01J 27/043 with iron group metals or platinum group metals since 1985 IPC+CPC Available in IPC and CPC
- B01J 27/047 with chromium, molybdenum, tungsten or polonium since 1985 IPC+CPC Available in IPC and CPC