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Colloidal Silica

Colloidal silica made by DKIC consists of dense silica particles suspended in aqueous medium. These particles are spherical and uniform in size. They do not have any internal structure of their own and are totally amorphous. These particles are discrete and non-agglomerated. DKIC produces colloidal silica with particle size ranging between 7 to 35 nanometers. These stable aqueous dispersions of colloidal silica are available in silica concentrations from 20 to 50 weight%.

Colloidal Silica is readily soluble in water in all proportions. It has a low viscosity, which is comparable to that of water. The individual silica particles get thoroughly dispersed in water.

The silica obtained from colloidal silica is pure and amorphous in nature. Compared to sodium silicate the total alkalinity is negligible. Hence it produces a refractory effect greater than that of ceramic fiber / ceramic grain itself.

The amorphous silica particles in a colloidal silica system are discrete and are non-agglomerated. They ultimately produce excellent thermal bonding in the various high temperature applications 
up to 1200 oC and higher.

Our products are characterized by their exceptionally low viscosity and excellent stability.


Grades:
  • Colloidal Silica is available in many grades.
  • The concentration of Silica varies from 20 wt% to 50 wt%.
  • The particle size range produced by DKIC is between 7-35 nanometers.
DKIC can also make tailored specific colloidal silicas as per requirement of customer.


Stability
  • Six Months to One Year under ideal storage conditions

Packing
  • 60 kg Carbuoys
  • 250kg virgin seaworthy barrels
  • 1250 kg IBC.

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Dr. Vikhar Khan,
Apr 3, 2011, 2:05 PM
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