Dolomite
MINERAL
Dolomite
Dolomite is a common sedimentary rock-forming mineral composed of calcium magnesium carbonate (CaMg(CO₃)₂). It has various industrial and decorative uses due to its unique properties.
- Dolomite is used as a filler and extender in paints and coatings to improve their mechanical properties, reduce costs, and enhance durability.
- Dolomite is added to plastics to enhance their rigidity, thermal conductivity, and impact resistance. It also reduces production costs by acting as a cost-effective filler.
- In soaps and detergents, finely ground dolomite serves as a mild abrasive, aiding in the cleaning process.
- Dolomite is used as a fluxing agent in the steelmaking process to remove impurities and improve the quality of the steel.
- It can be used in the manufacture of cement, contributing to the binding properties and overall performance of the material.
- Dolomite-based refractory materials provide thermal insulation, ensuring energy efficiency and protection in industrial processes.
Physical Composition
| Appearance | White Crystalline Powder |
|---|---|
| Sp. Gravity | 2.6-2.8 |
| Oil Absorption | 12 to 14 |
| Volatile Content | Max. 0.5% |
| PH of 10% slurry | 8.5 to 9.0 |
| Coarse Particles | Max. 0.5% |
Chemical Composition
| Appearance | White Crystalline Powder | |
|---|---|---|
| CaCO3 | 56.5% | |
| MgCO3 | 43.0% | |
| CaO | 31.5% | |
| MgO | 20.5% | |
| Fe2O3 | 0.5% | |
| SiO2 | 1.5% | |
| Al2O3 | 0.5% |