Calcium Carbonate
(CaCO3)
Overview & Purity
Calcium carbonate (CaCO₃) is a widely used inorganic compound in diverse industries, available in various purity grades, including industrial-grade (≥95%), food-grade (≥99%), and pharmaceutical-grade (≥99.5%). High-purity grades ensure consistency and reliability for applications in pharmaceuticals, food, chemicals, and construction. Its chemical stability, whiteness, and particle size distribution make it a versatile material for industrial and commercial purposes. Calcium carbonate is extracted from natural sources or produced synthetically to meet different technical requirements.
Physical Forms & Appearance
Calcium carbonate is supplied in powder, granules, or micro-powder forms. It is typically white, odorless, and crystalline, with particle sizes tailored to specific applications. Coarse forms are often used in construction, while fine powders are applied in plastics, paints, coatings, and pharmaceuticals. Analytical parameters such as purity, particle size, moisture content, and whiteness index are strictly monitored to ensure consistent quality.
Standards & Quality Assurance
Production of calcium carbonate adheres to ISO, ASTM, and national standards, ensuring consistent chemical composition, particle size, and purity. Each batch undergoes quality control tests for calcium content, heavy metal impurities, pH, and moisture levels. Certificates of Analysis (COA) are provided to guarantee compliance with industry and regulatory standards, ensuring safe and reliable use in all applications.
Applications Across Industries
Calcium carbonate is a multi-functional material with broad applications:
Construction & Building Materials:
Used as a filler in cement, concrete, asphalt, and road construction.
Plastics & Rubber:
Acts as a filler to enhance mechanical properties, reduce costs, and improve durability.
Paints & Coatings:
Provides whiteness, opacity, and consistency in paints, coatings, and inks.
Paper Industry:
Functions as a coating pigment, filler, and brightener.
Pharmaceutical & Food Industry:
Food-grade calcium carbonate serves as a dietary supplement, antacid, and additive.
Environmental Applications:
Used in flue gas desulfurization, wastewater treatment, and pH adjustment.
Other Industrial Uses:
Applied in glass manufacturing, adhesives, sealants, and chemicals.
Construction & Building Materials:
Used as a filler in cement, concrete, asphalt, and road construction.
Plastics & Rubber:
Acts as a filler to enhance mechanical properties, reduce costs, and improve durability.
Paints & Coatings:
Provides whiteness, opacity, and consistency in paints, coatings, and inks.
Paper Industry:
Functions as a coating pigment, filler, and brightener.
Pharmaceutical & Food Industry:
Food-grade calcium carbonate serves as a dietary supplement, antacid, and additive.
Environmental Applications:
Used in flue gas desulfurization, wastewater treatment, and pH adjustment.
Other Industrial Uses:
Applied in glass manufacturing, adhesives, sealants, and chemicals.
Packaging Options
Calcium carbonate is available in 25–50 kg bags, jumbo bags (500–1000 kg), and bulk containers, depending on the particle size and customer requirements. Packaging is designed to protect from moisture and contamination, ensuring safe storage, transport, and handling. Proper packaging preserves product quality and usability.
Safety & Environmental Considerations
Calcium carbonate is generally non-toxic and safe, though inhalation of fine dust may cause respiratory irritation. Direct contact with eyes may cause minor irritation. Standard personal protective equipment (PPE), including masks, gloves, and goggles, is recommended when handling powders. Environmentally, calcium carbonate is safe, biodegradable, and widely used in eco-friendly applications.
Storage & Handling
Calcium carbonate should be stored in dry, cool, and ventilated areas, away from moisture and incompatible chemicals. Fine powders should be kept in sealed, moisture-proof containers to prevent caking. Proper storage ensures chemical stability, product quality, and ease of handling.
Conclusion
Calcium carbonate is a versatile and essential industrial chemical used in construction, plastics, coatings, paper, pharmaceuticals, and environmental applications. With multiple grades, standardized production, and strict quality control, it provides reliable, high-performance solutions across industries. Correct handling, storage, and safety measures ensure efficiency, long shelf life, and environmentally responsible use.
