Sodium Silicate Solution
Technical Specifications
Typical Technical Specifications
|
Parameter |
Typical Value |
|---|---|
|
Appearance |
Clear to slightly hazy, viscous liquid |
|
Colour |
Colourless to pale yellow |
|
Specific Gravity at 20°C |
1.35–1.55 |
|
pH (1% solution) |
11.0–12.5 |
|
SiO₂ Content |
25–35% |
|
Na₂O Content |
8–15% |
|
SiO₂ : Na₂O Weight Ratio |
2.0–3.3 |
|
Total Solids |
35–50% |
|
Solubility |
Miscible with water |
|
Odour |
Odourless |
|
Nature |
Strongly alkaline |
| Density | 1.36–1.47 grams per cubic centimeter, depending on composition |
| Viscosity | High, thick, and sticky, depending on concentration |
| Solubility | Fully soluble in water, but insoluble in alcohols and acids |
| Hygroscopicity | Absorbs moisture from the air |
These are broad indicative ranges across different commercial grades, not one guaranteed formulation. The oxide ratio, density and solids content must be specified together for a particular grade.
Application & Dosage
Major Applications
-
Detergent Manufacturing: Used as an alkaline builder, buffering agent and corrosion-inhibition component.
-
Water Treatment: Used in selected corrosion-control and water-treatment formulations.
-
Construction Chemicals: Used in cementitious systems, concrete treatment and chemical grouting.
-
Foundry Industry: Acts as an inorganic binder for sand moulds and cores.
-
Refractory Manufacturing: Used as a binder in refractory cements and heat-resistant materials.
-
Paper and Pulp Industry: Used in peroxide bleaching stabilization and selected processing applications.
-
Industrial Cleaning: Provides alkalinity and supports detergent action in suitable cleaning formulations.
Sodium Silicate is used in soaps detergents and in the manufacture of silica gel. It is used as a cement, binder, filler and adhesive. And also used as a wall coating, in concrete, fire proofing material and as a sealant. It is also used to preserve eggs and wood.
APPLICATION::
It's used in construction, detergents, textiles, and even food preservation.
Here's a more detailed look at its uses:
Construction:
Concrete and Cement Admixture:
- Sodium silicate increases the strength and durability of concrete and acts as a sealant, preventing water penetration.
Soil Stabilization:
- It's used to stabilize soil at construction sites, particularly for roads and foundations.
Fireproofing:
- Sodium silicate acts as a fire retardant, adding a layer of protection against fire damage to buildings.
Detergents:
Builder:
- It helps remove hard water ions and control alkalinity, making detergents more effective and preventing fabric damage.
Soap Manufacturing:
- Sodium silicate can be used as a filler and to increase the hardness of soap bars.