IPC Subgroup
C01B 17/28 with reducing gases
Introduced: September 1968
Last revised: January 2006
Full Title
Sulfur; Compounds thereof > Alkali metal sulfides or polysulfides > Preparation by reduction > with reducing gases
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF