2Fe(OH)3+3H2SO4= Fe2(SO4)3+ 6H2O
2Fe3+ + 6OH- + 6H+ + 3SO42- = 2Fe3+ + 3SO42- + Н2O
6OH- + 6H+ = Н2O
2Fe(OH)3+3H2SO4= Fe2(SO4)3+ 6H2O
2Fe3+ + 6OH- + 6H+ + 3SO42- = 2Fe3+ + 3SO42- + Н2O
6OH- + 6H+ = Н2O