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I | Na+, K+, NH4+ Li+ | - | , |
II | Ag +,Pb2+, Hg22+ | 2M HCl | |
III | Ba2+, Sr2+,Ca2+ | 1M H2SO4 | |
IV | Al3+, Zn2+, Cr3+, Sn2+, Sn4+, As3+, As5+ | .NaOH + H2O2 | ó , |
V | Fe2+, Fe3+, Bi3+, Mg2+, Mn2+, Sb3, Sb5+ | .NaOH | ó , . |
VI | Co2+,Cd2+, Ni2+ Cu2+, Hg2+ | .NH4OH | ó , , |
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