IPC Subgroup
C01C 1/04 Preparation of ammonia by synthesis
Introduced: September 1968
Last revised: January 2006
Full Title
Ammonia; Compounds thereof > Preparation or separation of ammonia > Preparation of ammonia by synthesis
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- AMMONIA; CYANOGEN; COMPOUNDS THEREOF