Description

Calcium Carbonate CAS NO 471-34-1 is a fundamental inorganic compound widely used as a versatile filler, extender, and functional additive. Its importance lies in providing cost-effective volume, enhancing physical properties, and acting as a key source of calcium in numerous industrial and nutritional applications. This essential material is needed by manufacturers in the plastics, paper, paints & coatings, construction, food, pharmaceutical, and animal feed industries.

Application

• Plastics & Polymers: Acts as a primary filler and reinforcing agent in PVC, polypropylene, and polyethylene to improve stiffness, impact strength, and reduce material costs.
• Paper Industry: Used as a coating pigment and filler to enhance paper brightness, opacity, smoothness, and printability.
• Paints & Coatings: Serves as an extender pigment to improve whiteness, sheen control, and durability while reducing formulation costs.
• Construction Materials: A key raw material in cement, sealants, adhesives, and as a filler in flooring compounds and roofing materials.
• Food & Nutrition: Employed as a dietary calcium supplement, acidity regulator, and anti-caking agent (FCC grade).
• Pharmaceuticals: Used as an excipient (diluent) in tablets and capsules and as an active ingredient in antacids and calcium supplements (USP/EP grade).
• Animal Feed: An essential calcium source for livestock and poultry to support bone development and eggshell quality.
• Environmental & Industrial: Used in flue gas desulfurization, water treatment, and as a neutralizing agent for acidic waste streams.

Basic Information

Product Name	Calcium Carbonate
CAS No.	471-34-1
Molecular Formula	CaCO3
Molecular Weight	100.09 g/mol
Synonyms	Carbonic acid calcium salt; Limestone; Calcite; Aragonite; Chalk; Precipitated Calcium Carbonate (PCC); Ground Calcium Carbonate (GCC); Whiting; Agricultural limestone; Marble
EINECS	207-439-9

Quality Control

Our Calcium Carbonate is produced under a stringent quality management system. We offer various grades, including Industrial, Food (FCC), and Pharmaceutical (USP/EP), each meeting specific purity and performance criteria. Certificates of Analysis (COA) documenting key parameters such as assay, heavy metals, and particle size distribution are provided with every shipment to ensure traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong acids. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent caking.

Specification

Item	Specification
Appearance	White powder or crystals
Identification (IR)	Conforms
Assay (CaCO3)	≥ 98.0 %
Loss on Drying	≤ 2.0 %
Acid Insoluble Substances	≤ 0.2 %
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm
Particle Size (D50)	Customizable (e.g., 2-20 µm)
pH (10% slurry)	8.0 - 10.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.