Fig. 2From: Effect of Ni2+, Zn2+, and Co2+ on green rust transformation to magnetiteGR transformation to magnetite in the presence of metal cations. GR suspensions were heated at 85 °C under anoxic conditions in the presence of 1 ppm A nickel; B zinc or C cobalt. D Reference X-ray diffractograms of magnetite and green rust sulfateBack to article page