CAS 584-08-7 Potassium Carbonate Powder, White Granular Potassium Carbonate K2CO3 for Ceramics
Product Overview
Potassium carbonate is an inorganic compound with chemical formula K2CO3 and molecular weight of 138.206. This white crystalline powder or granular material has a density of 2.428g/cm³ and melting point of 891℃. It is highly soluble in water (forming an alkaline solution) but insoluble in ethanol, acetone, and ether. Potassium carbonate exhibits strong hygroscopic properties, absorbing carbon dioxide and moisture from air to convert into potassium bicarbonate. Proper sealing is essential for storage.
| Product Name |
Potassium Carbonate |
| Other Name |
Carbonate of potash |
| MF |
K2CO3 |
| CAS |
584-08-7 |
| EINECS |
209-529-3 |
| HS CODE |
2836400000 |
| Purity |
98.5%, 99%, 99.5% |
| MW |
138.21 |
| Appearance |
White powder or granule |
| Packing |
25KG/50KG |
| Applicable crops |
Corn, tobacco, potatoes, tomato, sugar beets, citrus, rice, capsicum, etc |
UNID Potassium Carbonate Specifications
| Item |
Results |
| K2CO3 |
99.88% |
| Fe |
1.08ppm |
| KCL |
0.0082% |
| k2SO4 |
0.0086% |
| Ig-Loss |
0.2% |
| Water Insoluble |
0.003% |
Potassium Carbonate Applications
1. Agricultural Industry
As a potassium fertilizer, potassium carbonate provides essential potassium elements crucial for plant nutrient absorption, biochemical metabolism, and environmental adaptation. Its excellent water solubility allows rapid potassium delivery while releasing carbon dioxide (CO₂) to enhance crop photosynthesis.
2. Glass Industry
Potassium carbonate increases glass softening temperature by decomposing at high temperatures to form stable compounds with SiO₂ and other oxides, improving thermal resistance and melting point stability.
3. Glaze Industry
In glazes, potassium carbonate lowers melting points, promotes smoother flow, reduces shrinkage/cracking, and enhances glaze layer strength and toughness.
4. Food Industry
Food-grade potassium carbonate serves as a leavening agent in puffed foods (e.g., potato chips, popcorn), reacting with water to produce carbon dioxide for improved texture and taste.
5. Ceramics Frit
As K₂O in ceramics frit, potassium carbonate reduces melting temperatures while increasing the expansion coefficient of the final product.
Packing & Shipping
Storage Guidelines
- Store in dry, ventilated areas away from moisture
- Avoid outdoor storage or air exposure
- Protect from rain during loading/unloading
- Maintain dry, contaminant-free packaging
- Separate from acid substances during handling/transport
- Use water as fire extinguishing agent
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