1
2020 - 09
1.
2.
O2
O2 OH H O2
3.
4. OH H
O2 O2 O2
1 ZnS SiO2 FeSCdS
PbS
[c0(M n+)=0.1 mol L-1] pH
Fe3+ Fe2+ Zn2+ Cd2+
pH 1.5 6.3 6.2 7.4
pH 2.8 8.3 8.2 9.4
1 _______________________
2 1 SiO2 ___________ ZnO ____________
________________
3 Cd2+ _________________
