Sodium silicate, also known as waterglass, is a white or colorless compound with a thick slippery texture that is composed of sodium oxide and silica. It is used in a variety of applications, including as a binder, detergent builder, and fire retardant. Sometimes used to temporarily seal small cracks in the cooling system.
Sodium Silicate Physical and Chemical Properties …
- Sodium silicate: 37% Wt.% (28% silica + 9% sodium oxide)*
- Water: 63% Wt%
- Appearance: Thick liquid.
- Color: Clear to murky white.
- Odor: Odorless or musty odor.
- pH: Approximately 11.3
- Specific gravity: 1.39 g/cm3 (20°C), 41° Be, 11.62 lbs/gal
- Solubility in water: Miscible.
Sodium silicate is available in larger sizes …
Call 1-800-372-6726 during business hours for pricing 55 gal. drum.
* Sodium Silicate is produced by melting high purity sand with sodium carbonate (soda ash) in high temperature furnaces. The resulting product is a water soluble silicate powder that is known as water glass or sodium silicate solution once it is dissolved in water. Sodium silicate solution is chemically comprised of a weight ratio of silica to sodium oxide dissolved in water. Our sodium silicate has a weight ratio of 3.22 (SiO2:Na2O), which breaks down as ~28.7% silica (SiO2) to ~8.9% sodium oxide (Na2O), and that translates into a solution that is approximately 37.5% sodium silicate by weight in water.
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