Fig. 1
From: A study on the dissolution rates of K-Cr(VI)-jarosites: kinetic analysis and implications
SEM images of the synthesized solids. a Particles synthesized in S2; similar characteristics are observed from S2 to S7. b Spheroidal aggregate obtained from S2 to S7. c Particles synthesized in S1. d Cubic euhedral aggregate obtained in S1. From synthesis S2 to S7, the precipitates are mainly composed of spheroidal aggregates, which are typical of synthetic jarosite-type compounds