CPC Subgroup
C01B 17/32 Hydrosulfides of sodium or potassium
Full Title
Sulfur; Compounds thereof > Alkali metal sulfides or polysulfides > Hydrosulfides of sodium or potassium
C01B 17/32 Sulfur; Compounds thereof > Alkali metal sulfides or polysulfides > Hydrosulfides of sodium or potassium