FeS+H2O= H2S+ FeO
H2S=H2+S
S+O2=SO2
2SO2+O2= 2SO3
SO3+2 NaOH=NA2SO4+ H2O
NA2SO4+ Ba(OH)2=BASO4+2 NaOH
FeS+H2O= H2S+ FeO
H2S=H2+S
S+O2=SO2
2SO2+O2= 2SO3
SO3+2 NaOH=NA2SO4+ H2O
NA2SO4+ Ba(OH)2=BASO4+2 NaOH