Product Name:
Potassium Silicate
🔬 Scientific Name:
Disilicate of Potassium / Potassium Metasilicate
🏷️ Trade Names:
Water glass (potassium), potassium silicate, liquid glass, alkaline silicate
⚛️ Chemical Formula:
K₂SiO₃ or K₂O·nSiO₂
🧾 CAS Number:
1312-76-1
📦 HS Code:
2839.19
📘 Description:
Potassium silicate is a water-soluble alkaline compound used in agriculture, coatings, fireproofing, and detergents. It enhances plant resistance and is preferred over sodium silicate in soil applications due to its lower sodium content.
⚗️ Physical & Chemical Properties:
| Property | Value |
| Physical State | Clear liquid or white powder |
| pH (1% solution) | 11.5 – 12.5 |
| Density | 1.3 – 1.5 g/cm³ |
| SiO₂ / K₂O Ratio | 2.0 – 4.0 |
| Solubility | Fully soluble in water |
🧪 Production Process:
Produced by melting silica with potassium carbonate or reacting KOH with silicate solution under controlled conditions.
🧯 Safety & Handling:
- Hazards: Corrosive to skin and eyes
- Precautions: Use PPE including gloves, goggles, ventilation
- Packaging: IBC tanks, drums, waterproof bags
- Transport: Not flammable, but corrosive
📊 Available Grades & Applications:
| Grade Type | SiO₂/K₂O Ratio | Form | Applications |
| Agricultural | 3.5 – 4.0 | Liquid | Foliar spray, plant resistance enhancer |
| Industrial | 2.0 – 3.3 | Liquid | Coatings, ceramics, refractory materials |
| Detergent Grade | 2.5 – 3.0 | Powder | Cleaning agents, degreasers |
| Coating Grade | 3.0 – 3.5 | Liquid | Heat-resistant and anticorrosive coatings |
🌍 Major Exporters:
China, India, Germany, Netherlands
🌎 Major Importers:
Iran, Brazil, Indonesia, Saudi Arabia
🔎 SEO Keywords:
Potassium silicate liquid, K₂SiO₃ for agriculture, water glass potassium, buy potassium silicate, fireproof coating additive
