CPC Subgroup
C01B 17/42 Sulfides or polysulfides of magnesium, calcium, strontium, or barium
Full Title
Sulfur; Compounds thereof > Sulfides or polysulfides of magnesium, calcium, strontium, or barium
2 direct subcodes
Child Classifications
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- C01B 17/43 from oxides or hydroxides with sulfur or hydrogen sulfide
- C01B 17/44 by reduction of sulfates