Fig. 12
From: A study on the dissolution rates of K-Cr(VI)-jarosites: kinetic analysis and implications
Dissolution rate constants (kexp) vs. pH of the reaction, and total reaction times (tr) for the dissolution of KFe3[(SO4)2 − X(CrO4)X](OH)6. Results show that the dissolution rate increases as the ratio OH−/H3O+ is increased in the system. Values of rate constants and tr for the dissolutions of K-As-jarosite and Na-As-jarosite at 30 °C are very similar to the ones reported in this work. Figure 12 illustrates data taken from: athis work, bPatiño et al. [32, 33] and cFlores et al. [51]