Silicic acid, precipitated dried Cas no 1343-98-2 - used for studying neurodegenerative diseases due to its ability to inhibit Aluminium uptake

Precipitated silica and colloidal silica are produced in the process shown in Figure 4.37. Since the original raw material is silicic acid sodium, relatively inexpensive SiO2 particles are obtained. Precipitated silica ((a) in the figure) is not a single particle but rather a body of several precipitated particles. Colloidal silica, produced at point (b) by ion exchange, 

Precipitated silica is an amorphous form of silica (silicon dioxide, SiO2); it is a white, powdery material. Precipitated silica is produced by precipitation from a solution containing silicate salts.

SILICIC ACID PRECIPITATED DRIED