Sodium silicate is the generic name for a series of compounds derived from soluble sodium silicate
glasses. They are water solutions of sodium oxide (Na2O) and silicon dioxide (SiO2) combined in various
ratios. Varying the proportions of SiO2 to Na2O and the solids content results in solutions with differing
properties that have many diversified industrial applications.
Indo Chemica Lestari have standard commercial grades of liquid sodium silicates range in weight ratio of
SiO2 to Na2O from 2.0 to 3.3. In addition to liquid sodium silicates.
SiO2 to Na2O from 2.0 to 3.3
Sodium silicate glass is made by fusing high purity silica sand and soda ash in open hearth furnaces at
1300
oC/2400
oF. The molten glass is cooled, fractured, and charged into vessels where it is dissolved
under pressure by hot water and steam. The various grades of liquid sodium silicate are produced by
varying the alkali/silica ratio and the solids content.
The glass briquest plants are located at Samarinda, Kalimantan Timur and are within convenient
shipping distances of all major industrial areas.