IPC Subgroup
C01B 17/44 by reduction of sulfates
Introduced: September 1968
Last revised: January 2006
Full Title
Sulfur; Compounds thereof > Sulfides or polysulfides of magnesium, calcium, strontium, or barium > by reduction of sulfates
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF