Potassium Silicate Supplier | CAS 1312-76-1 | Agricultural & Industrial Grade
Product Name: Potassium Silicate
CAS Number: 1312-76-1
Molecular Formula: K₂O·nSiO₂
Other Names: Liquid Potassium Silicate, Water Glass, Potassium Silicate Solution
Product Introduction
Potassium silicate (CAS 1312-76-1) is a colorless or pale yellow transparent liquid or white powder. It is a soluble silicate compound composed of potassium oxide (K₂O) and silicon dioxide (SiO₂). It is widely used in various industrial fields, including agricultural-grade silicon fertilizers, fire-retardant coatings, inorganic binders, and ceramic fluxes. As a highly alkaline inorganic binder, liquid potassium silicate exhibits excellent heat and acid resistance and environmental friendliness, making it particularly suitable for environmentally friendly agriculture, green building materials, and industrial anti-corrosion coatings.
Physical & Chemical Properties
| Property | Specification |
|---|---|
| Product Name | Potassium Silicate |
| CAS Number | 1312-76-1 |
| Molecular Formula | K₂O·nSiO₂ (variable ratio) |
| Appearance | Colorless or light yellow liquid / white powder |
| Purity (K₂O + SiO₂) | ≥ 99% |
| SiO₂:K₂O Ratio | 2.5:1 ~ 3.5:1 |
| pH (1% solution) | 11.3 – 11.8 |
| Solubility | Completely soluble in water |
| Density (20°C) | 1.2 – 1.4 g/cm³ |
| Shelf Life | 12 months (sealed) |
| HS Code | 28399000 |
🛠 Applications
Agricultural Silicon Fertilizer & Crop Stress Resistance Enhancer
Potassium silicate is an important agricultural-grade potassium silicate fertilizer, widely used in foliar sprays or drip irrigation systems for fruits, vegetables, grains, and greenhouse crops. It enhances plant resistance to pests, lodging, and drought, and is a key component of sustainable agriculture.
Coatings and Building Fireproofing Materials
As a binder for fire-retardant coatings and anti-corrosion coatings, potassium silicate exhibits high-temperature and alkali resistance and does not release harmful gases. It is suitable for environmentally friendly bonding of indoor and outdoor buildings, steel structures, and asbestos replacement materials.
Ceramics and Welding Industry
Used as a ceramic flux and welding rod adhesive, potassium silicate improves the thermal stability and structural integrity of the material, making it particularly suitable for the processing of high-temperature resistant components and metal joining processes.
Water Treatment and Industrial Cleaning
Potassium silicate is an ideal environmentally friendly water treatment agent and industrial descaling agent. Its high alkalinity helps remove system deposits while being non-corrosive to equipment. Inorganic Adhesives and Insulation Materials
Liquid potassium silicate is often used in the production of silicate fireproof panels, high-temperature-resistant sealing materials, and foam glass insulation bricks. It is a key raw material in the green building materials industry.
Packaging and Storage
Packaging Specifications:
Liquids: 250kg plastic drums, IBC drums, custom tank trucks
Solids: 25kg woven bags or kraft paper bags. Custom OEM packaging is available.
Storage Conditions:
Store in a cool, dry, well-ventilated place. Keep sealed and moisture-proof, away from direct sunlight.
Recommended Storage Temperature: 5-30°C (6-11°F). Keep container tightly closed.
Contact us for samples or a quote.
📦 Worldwide Shipping | COA/MSDS/TDS Available | OEM Customization Supported | Free Samples Available
