DIFF Subgroup Additional Only
B01J 2523/60 of Group VI (VIA or VIB) of the Periodic Table
Full Title
Constitutive chemical elements of heterogeneous catalysts > of Group VI (VIA or VIB) of the Periodic Table
Of 7 combined children, 0 exist in both systems.
7 codes are CPC-only extensions.
Note: 7 CPC extensions are marked as secondary classification only.