A series of experiments was conducted to study the uptake of Cu by colloidal SiO2 in aqueous solution. Solutions consisting of 2400 mg l−1 monomeric SiO2 were allowed to polymerize for 24 h at pH values from 4 to 9, producing ...
One of several natural muscovites or illites, kaolinite, and quartz or amorphous silica were equilibrated in 2 M KCl/HCl solutions in hydrothermal experiments designed to investigate the stability, composition, and structure ...