Potassium Silicate
- CAS
- 1312-76-1
- EC
- 215-199-1
- Sectors
- Building & Construction, Agriculture
Potassium Silicate (CAS 1312-76-1) is a silicate composed of potassium oxide and silicon dioxide, supplied as a white powder that forms alkaline solutions with strong binding and heat-resistant properties, and is used as a binder in adhesives, refractories and coatings, as a silicon fertilizer in agriculture, and in fireproofing compounds.
Typical Properties
| Molecular weight | 154.28 g/mol |
|---|---|
| Form | Powder |
| Color | White |
| Melting point | >300°C |
| Density | 1.203-1.209 g/cm³ @ Temp: 20 °C |
| Water solubility | Soluble in water. |
| GHS signal word | Danger · Corrosive, Irritant / harmful |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Potassium Silicate
Applications
Used in adhesives, refractories, and coatings as a binder and corrosion inhibitor. In agriculture, it serves as a silicon fertilizer enhancing plant strength and pest resistance. It also functions as a water glass in metal cleaning and fireproofing compounds.
Safety & Risks
Corrosive in concentrated form; avoid contact with skin and eyes. Handle with gloves and eye protection.
Packaging
Delivered in 25 kg paper bags or 200 kg drums. Store in cool, dry, and sealed conditions, away from acids and moisture.