High-quality limestone powder (calcium carbonate) for construction, agriculture, water treatment, and industrial applications. Trusted limestone powder manufacturer and supplier in India from Rajasthan.
Limestone powder is a fine white powder produced by grinding natural limestone rock. Limestone is a sedimentary rock composed primarily of calcium carbonate (CaCO₃), formed over millions of years from the accumulated remains of marine organisms. What is limestone powder used for? It is one of the most versatile industrial minerals — used across construction, agriculture, water treatment, glass, steel, and environmental applications.
Limestone is the most abundant carbonate rock on Earth. When crushed and ground to controlled particle sizes, it becomes limestone powder — a cost-effective source of calcium and alkalinity for dozens of industries. The chemical formula of limestone is CaCO₃, the same as calcite and ground calcium carbonate (GCC). The difference lies in purity, processing level, and intended application: limestone powder is typically 95–98% CaCO₃ and used where moderate purity is sufficient, while GCC and calcite powder target 98–99.5% purity for higher-brightness applications.
Used in cement production, concrete mixing, and soil stabilization for enhanced strength and durability.
Essential for soil pH adjustment, providing calcium for plant growth and improving soil structure.
Used for pH adjustment, hardness removal, and impurity neutralization in water treatment processes.
Applications in glass manufacturing, steel production, flue gas desulfurization, and chemical processes.
Limestone powder (calcium carbonate, CaCO₃) is used across a wide spectrum of industries. Below are the main limestone powder uses and the applications we serve from our manufacturing facilities in Rajasthan, India.
Limestone powder is a critical raw material in cement production — Portland cement contains approximately 80% limestone. In concrete, limestone powder acts as a filler that improves workability, reduces permeability, and enhances long-term durability. It is also used in mortar, tile adhesives, grouts, and asphalt. Limestone powder for construction typically uses 200–400 mesh grades. Learn more: Limestone Powder in Construction.
Agricultural limestone (also called aglime or agricultural lime) is ground limestone applied to farmland to neutralise acidic soils. The limestone powder neutralising value is determined by its CaCO₃ content and particle size — finer powders react faster with soil acids. Limestone provides essential calcium for plant growth, improves soil health, and supports beneficial microbial activity. It is one of the most cost-effective soil amendments available.
Learn more: Limestone Powder in Agriculture.
Soil stabilization using limestone powder is a widely practised technique in civil engineering. When mixed with expansive or weak soils, calcium carbonate reduces plasticity, improves load-bearing capacity, and decreases swelling potential. This makes limestone powder an economical alternative to cement stabilisation for sub-grade preparation in roads, foundations, and embankments.
Limestone powder is used in water treatment to raise pH, neutralise acidity, and remove dissolved metals. Municipal and industrial water treatment plants use it for pH control — it reacts slowly and steadily, avoiding the sharp pH spikes caused by caustic chemicals. It also helps soften water by precipitating excess calcium. Learn more: Limestone Powder in Water Treatment.
In glass manufacturing, limestone serves as a source of CaO (calcium oxide) — an essential flux that lowers the melting point of silica and improves the durability and chemical resistance of glass. In steel production, limestone is used as a flux to remove impurities (silica, alumina) from the blast furnace, forming slag.
Limestone powder is used in flue gas desulfurization (FGD) to remove sulphur dioxide from power plant emissions — an important environmental application. It is also used in mine water treatment and acid mine drainage neutralisation.
Shikhar Microns is a trusted limestone powder manufacturer in India, processing high-quality limestone from Rajasthan's rich mineral deposits. As a limestone powder supplier in India, we serve construction, agriculture, water treatment, glass, and industrial markets with consistent quality and reliable delivery.
For limestone powder suppliers India — Shikhar Microns is your single-source partner. Request a quote or call us for samples and technical data sheets.
| Parameter | Specification | Test Method |
|---|---|---|
| Calcium Carbonate (CaCO₃) | 95-98% | IS 1760 |
| Whiteness | 85-95% | Hunter Lab |
| Brightness | 80-90% | ISO 2470 |
| Moisture Content | <0.5% | IS 1760 |
| pH (10% solution) | 8.5-9.5 | IS 1760 |
| Oil Absorption | 15-25 g/100g | ASTM D281 |
| Bulk Density | 0.8-1.2 g/cc | IS 1760 |
| Particle Size (D50) | 5-15 microns | Laser Diffraction |
| Mesh Size | Particle Size (Microns) | Applications |
|---|---|---|
| 200 Mesh | 74 microns | Construction, Agriculture |
| 300 Mesh | 50 microns | Water Treatment, Industrial |
| 400 Mesh | 37 microns | Glass Manufacturing, Steel |
| 500 Mesh | 25 microns | Chemical Processes |
| 600 Mesh | 20 microns | Specialty Applications |
How limestone relates to calcite and dolomite; which filler suits your application.
Read ArticleUses of limestone powder in cement, concrete, and building materials.
Read ArticleHow limestone powder is used for soil conditioning and crop nutrition.
Read ArticlepH control, acid neutralisation, and water softening with limestone powder.
Read ArticleContact us for competitive pricing and bulk supply of high-quality limestone powder for your specific application needs.
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