3 PbSO3 → Pb3O4 + SO2 ↑Pb3O4 + 4 HNO3 → Pb(NO3)2 + 2 H2O + 3 PbO3 PbO + 3 Pb(NO3)2 → 3 Pb + 3 Pb(NO3)2 + O23 Pb + 3 Pb(NO3)2 + H2S → 6 PbS + 2 HNO36 PbS + 3 O2 → 6 PbO + 6 S ↑
3 PbSO3 → Pb3O4 + SO2 ↑
Pb3O4 + 4 HNO3 → Pb(NO3)2 + 2 H2O + 3 PbO
3 PbO + 3 Pb(NO3)2 → 3 Pb + 3 Pb(NO3)2 + O2
3 Pb + 3 Pb(NO3)2 + H2S → 6 PbS + 2 HNO3
6 PbS + 3 O2 → 6 PbO + 6 S ↑