Sodium Silicate (Water Glass) CAS#1344-09-8
Powerful Alkalinity & Binding Capacity: Inorganic alkaline binder with adjustable modulus, high adhesive strength, effective for bonding, sealing and consolidation, widely used to adjust system pH value.
Excellent Solubility & Gelation Property: Miscible with water, forms silicic acid gel rapidly when reacting with acid; modulus determines viscosity and curing speed, easy to prepare different concentration liquid for industrial use.
Strong High-Temperature Resistance & Refractory Performance: Good thermal stability, non-flammable, maintains bonding strength under high temperature conditions, ideal raw material for refractory industry.
Stable Liquid Form for Convenient Transport: Clear viscous liquid with uniform texture, stable under sealed storage, easy to weigh, transport and automatic feeding.
Sodium silicate, also known as water glass, is a high-demand basic inorganic chemical raw material, with moderate corrosivity and wide coverage of industrial application scenarios.
Chemical & Physical Properties
| Property | Value |
|---|---|
| Melting point | 1088 ℃ (solid form) |
| Density | 1.35~1.55 g/cm³ (varies by Bé grade) |
| Storage temp | Sealed dry cool warehouse, strictly isolate acid materials |
| Solubility | Highly soluble in water, insoluble in alcohol |
| Form | Clear viscous liquid / solid lump / powder |
| Color | Colorless, pale grey or light greenish |
| Odor | Odorless |
| PH Value | 11-13, Strong alkaline |
| Hygroscopicity | Liquid stable sealed; solid absorbs moisture in air |
| Stability | Stable in airtight packaging; reacts rapidly with acid to form silica gel |
| EINECS No. | 215-687-4 |
| CAS DataBase Reference | 1344-09-8 |
Safety Information
| Item | Value |
|---|---|
| Hazard Codes | C |
| Risk Statements | R34 |
| Safety Statements | S24/25; S26; S37/39; S45 |
| UN Number | UN1719 |
| Hazard Class | 8 Corrosive goods |
| Packing Group | III |
| Flammability | Non-flammable |
| HS Code | 28391900 |
Main applications: Foundry binder, refractory material, construction sealing & consolidation, mineral flotation, detergent builder, paper sizing, wastewater treatment, silica gel raw material, anti-corrosion coating, ceramic production, textile fixation.
