dianion
divalent negative ion
dithionous acid
chemical compound
hydrogen phosphate ion
chemical compound
sulfate ion
anion, [SO₄]²⁻
thiosulfuric acid
chemical compound
ferrate(VI) ion
[FeO4]2− anion analogue to the chromate anion
dithionite
oxyanion of sulfur at the oxidation number +3
pyrosulfate
sulfur dianion