IPC Subgroup
C01C 1/248 Preventing coalescing or controlling form or size of crystals
Introduced: July 1974
Last revised: January 2006
Full Title
Ammonia; Compounds thereof > Sulfates of ammonium > Preventing coalescing or controlling form or size of crystals
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- AMMONIA; CYANOGEN; COMPOUNDS THEREOF