WHAT IS COLLOIDAL SILICA?
Colloidal silica is the form of amorphous silicon dioxide (SiO2) nanoparticles dispersed homogeneously in water. Stability is achieved on electrical charges on the surface of nanoparticles. Low amount of sodium ions cause high particle stability in the production process. The pH of colloidal silica aqueous solutions without surface modification was around 8 - 10.5 range. The viscosity of colloidal silica is close to the viscosity of water. Colloidal silica nanoparticles can be produced between 1 - 100 nm in size and 10% - 50% in weight.
Colloidal silicas freeze at temperatures below 0oC and as a result of phase separation of nanoparticles, their stability deteriorates by sticking to each other, and colloidal silica loses its specifications.
With the special stabilization formulation developed by SİLİKA KİMYA, although colloidal silica freezes and thawed many times at temperatures below 0oC our colloidal silicas don’t lose its stability and properties.
APPLICATIONS OF COLLOIDAL SILICA: