Limestone Powder Manufacturer India

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

What is Limestone Powder?

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.

Key Properties

  • Chemical Formula: CaCO₃ (Calcium Carbonate)
  • Purity: 95-98% CaCO₃
  • Whiteness: 85-95%
  • pH: 8.5-9.5
  • Moisture: <0.5%
  • Oil Absorption: 15-25 g/100g

Applications

Construction

Used in cement production, concrete mixing, and soil stabilization for enhanced strength and durability.

Agriculture

Essential for soil pH adjustment, providing calcium for plant growth and improving soil structure.

Water Treatment

Used for pH adjustment, hardness removal, and impurity neutralization in water treatment processes.

Industrial

Applications in glass manufacturing, steel production, flue gas desulfurization, and chemical processes.

Quick Facts
  • Product: Limestone Powder
  • Chemical Name: Calcium Carbonate
  • Formula: CaCO₃
  • Origin: Rajasthan, India
  • Packaging: 25kg, 50kg bags
  • Storage: Dry, cool place
  • MOQ: 1 Ton
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Limestone Powder Uses Across Industries

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.

Construction: Limestone Powder in Cement and Concrete

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: Soil pH and Crop Nutrition

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.

  • Raises soil pH to optimal 6.0–7.0 range for most crops
  • Supplies calcium (Ca) — essential for cell wall formation
  • Improves nutrient availability (N, P, K, and micronutrients)
  • Enhances soil structure and water infiltration
  • Reduces aluminium and manganese toxicity in acidic soils

Learn more: Limestone Powder in Agriculture.

Soil Stabilization with Limestone Powder

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.

Water Treatment and pH Control

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.

Glass and Steel Manufacturing

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.

Environmental Applications

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.

Limestone Powder Manufacturer and Supplier in India

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.

  • Manufacturing base: Rajasthan, India — premium limestone reserves
  • Product range: 200–600 mesh, 95–98% CaCO₃
  • Packaging: 25 kg, 50 kg bags, jumbo bags; custom packaging available
  • Supply: Pan-India delivery; export-ready
  • Quality: Batch-wise testing for CaCO₃ content, whiteness, moisture, particle size, and neutralising value

For limestone powder suppliers India — Shikhar Microns is your single-source partner. Request a quote or call us for samples and technical data sheets.

Technical Specifications

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

Available Mesh Sizes

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

Frequently Asked Questions

Limestone powder is used in construction (cement, concrete), agriculture (soil pH adjustment), water treatment (pH control), glass manufacturing, steel production, flue gas desulfurization, and various industrial applications.

Both are calcium carbonate (CaCO₃), but limestone powder typically refers to the natural form used in construction and agriculture, while calcite powder is often the processed form used in industrial applications.

We offer limestone powder in various mesh sizes from 200 mesh (74 microns) to 600 mesh (20 microns), depending on your specific application requirements.

Yes, our limestone powder is safe for agricultural use and helps neutralize acidic soils, providing essential calcium for plant growth and improving soil structure.

Our minimum order quantity is 1 ton. We can supply larger quantities for bulk industrial applications with competitive pricing.

Limestone powder is a fine white powder made by grinding natural limestone rock — a sedimentary rock composed primarily of calcium carbonate (CaCO₃). It is used in construction (cement, concrete), agriculture (soil pH correction), water treatment (pH control), glass manufacturing, steel production, and environmental applications. Shikhar Microns manufactures limestone powder in 200–600 mesh from Rajasthan, India.

Agricultural limestone (aglime) is ground limestone applied to soil to raise pH and neutralise acidity. It provides calcium essential for plant growth, improves nutrient availability, and enhances soil health. The neutralising value depends on CaCO₃ content and particle fineness. Shikhar Microns supplies agricultural-grade limestone powder across India.

Limestone powder for soil stabilization works by reducing soil plasticity, improving load-bearing capacity, and decreasing swell potential in expansive soils. It is mixed into the sub-grade before paving roads, laying foundations, or constructing embankments. It is a cost-effective alternative to cement stabilisation for many civil engineering projects.

Limestone is a sedimentary rock (CaCO₃). Calcite is the mineral form of CaCO₃ — the main component of limestone. Dolomite is a different mineral: CaMg(CO₃)₂, containing magnesium. Limestone powder is typically 95–98% CaCO₃; calcite powder is 98.5%+ CaCO₃ (higher purity and brightness); dolomite provides magnesium and greater hardness. See our full comparison guide.

Related Resources

Calcite vs Dolomite vs Limestone

How limestone relates to calcite and dolomite; which filler suits your application.

Read Article
Limestone Powder in Construction

Uses of limestone powder in cement, concrete, and building materials.

Read Article
Limestone Powder in Agriculture

How limestone powder is used for soil conditioning and crop nutrition.

Read Article
Limestone Powder in Water Treatment

pH control, acid neutralisation, and water softening with limestone powder.

Read Article

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