Fig. 11From: A study on the dissolution rates of K-Cr(VI)-jarosites: kinetic analysis and implicationsEnergy dispersive X-ray mapping of a partially decomposed KFe3[(SO4)2 − X(CrO4)X](OH)6 particle in NaOH medium; pH 12.14, T = 30 °C (303 K), d0 = 38–44 µm, RPM = 750 min−1. The results confirm the unreacted core model and the adsorption of CrO4 2−on the Fe(OH)3 haloBack to article page