General colloidal silica slurry:
Köstrosol is a milky mobile aqueous dispersion of amorphous silicon dioxide nanoparticles. This large-size colloidal silica has a negatively charged surface (anionic) which is stabilized by Alkaline (Na ). The particles are made from highpurity alkali silicate. They are spherical and generally non-crosslinked and are hydroxylated at the surface. Köstrosol colloidal silica is commonly used to polish glass, optical lenses, bearings, sapphire, and single crystals such as fluorspar.