Kinetics of montmorillonite dissolution

Low molecular weight organic acids, ubiquitous in soils and sediments, play an important role in the alteration and weathering reactions as they enhance mineral dissolution rates. The dissolution rate of montmorillonite was measured in buffered oxalate solutions over a pH range from 3 to 8 and total oxalate concentrations of 0.1, 0.3 and 1.0 mmol L− 1 at 25 °C in a stirred flow-through reactor. Dissolution rates were obtained based on the...