Limestone

Description

1. Product Overview
   Limestone is a naturally occurring sedimentary rock primarily composed of calcium carbonate (CaCO₃), widely utilized across industrial value chains. It serves as a critical raw material in construction, steel manufacturing, cement production, chemical processing, and environmental applications such as flue gas desulfurization. Its key value proposition lies in its versatility, abundance, and cost-efficiency as a foundational industrial input. Strategically, limestone is essential for infrastructure development and heavy industry supply chains, making it a high-demand, globally traded commodity with stable long-term market relevance.
2. Key Specifications & Technical Characteristics

• Chemical Composition: Calcium Carbonate (CaCO₃) typically ≥ 90–99% depending on grade
• Purity Level/Grade: Industrial grade, construction grade, metallurgical grade available
• Physical Characteristics:
  • Form: Crushed stone / powder / lumps
  • Color: White, off-white, gray
  • Particle Size: Customized (0–5 mm, 5–20 mm, or fine powder <100 microns)
  • Density: ~2.6–2.8 g/cm³
• Packaging Options: Bulk shipment, 25 kg bags, 1 MT jumbo bags, or loose bulk
• Shelf Life: Indefinite under dry storage conditions

3. Core Industrial Applications
   Limestone is extensively used in cement and concrete production, acting as a primary raw material in clinker manufacturing. In the steel industry, it functions as a fluxing agent to remove impurities during iron ore smelting. It is also widely applied in the chemical industry for lime production, water treatment, and pH regulation in industrial processes. Compared to alternatives, limestone offers superior cost efficiency, stable chemical performance, and broad adaptability across high-volume industrial applications.
4. Competitive Advantages

• High chemical consistency ensuring predictable industrial performance
• Reliable large-scale supply capability for continuous production cycles
• Efficient global logistics network supporting bulk maritime and land transport
• Strong cost competitiveness due to abundant natural availability
• Environmentally beneficial applications, including emissions control and soil stabilization
• Comprehensive technical documentation and quality certification available for industrial buyers

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT
• Loading Capacity: Up to 20–27 MT per standard 20-foot container (depending on density and packaging format)