IPC Subgroup
C01B 33/4 Clays
Introduced: January 1995
Last revised: January 2006
Full Title
Silicon; Compounds thereof > Silicates > having base-exchange properties but not having molecular sieve properties > Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type > Clays
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF