Calcium carbonate

Calcium carbonate

Limestone; Calcite; Aragonite; Precipitated calcium carbonate (PCC)

CAS 471-34-1

Chemical Formula CaCO₃

Molecular Weight 100.09 g/mol

Calcium carbonate is a widely used compound found naturally in rocks, shells, and chalk. It is commonly used as a dietary calcium supplement and antacid to relieve heartburn and indigestion. In various industries, it serves as a filler in tablets, toothpaste, paints, plastics, and paper. It also finds use in agriculture to neutralize acidic soil and improve crop yield.

Industrial Uses

1. Pharmaceuticals

  • Calcium Supplement: Used in tablets and syrups as a dietary calcium source.
  • Antacid: Acts as a pH neutralizer to treat indigestion and heartburn.
  • Excipient: Functions as a filler and binder in tablet formulations.

2. Performance Chemicals

  • Precursor in Reactions: Acts as a raw material for producing calcium oxide (lime) and calcium salts.
  • pH Adjuster: Used in chemical processes to neutralize acidic environments.

3. Construction

  • Cement & Concrete Filler: Enhances strength, workability, and bulk in cement and concrete mixtures.
  • Marble/Granite Substitute: Used in flooring, tiles, and decorative applications as synthetic marble.
  • Road Marking & Asphalt: Improves wear resistance in road construction.

4. Agrochemicals

  • Soil Conditioner (Ag Lime): Reduces soil acidity and improves crop yield.
  • Carrier in Pesticide Formulations: Acts as a base for uniform distribution of active ingredients.

5. Paints, Coatings & Adhesives

  • Filler in Adhesives: Improves volume and reduces cost while enhancing mechanical properties.
  • Rheology Modifier: Helps control flow and setting time in sealants and pastes.

6. Polymers & Resins

  • Filler in Plastic Compounds: Enhances strength, surface finish, and heat resistance in PVC, PE, and PP.
  • Whitening & Opacifying Agent: Provides brightness and opacity in polymer films and molded products.

Specifications

Assay ≥ 98.0% (typical for industrial/USP/FCC grade)
Appearance White, odorless powder or crystalline solid
Odor Odorless
Boiling Point Decomposes before boiling (~825°C, releases CO₂)
Melting Point Decomposes at 825°C (does not melt)
Density 2.71 g/cm³ (for calcite form)
Solubility Practically insoluble in water (<0.0013 g/100 mL)
Viscosity Not applicable (solid)
Flash Point Not applicable (non-flammable solid)

FAQs

1. What is the current price of Calcium carbonate in India?
The price of Calcium carbonate can vary based on factors such as purity, quantity, etc. For the most accurate and competitive pricing, please contact us at +91.6301 00 6301 directly for a customized quote tailored to your needs.

2. Where can I buy Calcium carbonate in India?
You can purchase Calcium carbonate from MULTICHEM, a leading exporter with a reputation for quality and reliability. We provide convenient options for bulk orders and direct shipments across global markets. For more details on how to place an order, please visit our website or contact our sales team.

3. What is the minimum order quantity (MOQ) for Calcium carbonate?
Our minimum order quantity (MOQ) for Calcium carbonate is designed to cater to both small-scale and large-scale needs. The MOQ depends on the packing size of the product which could range from 25 kg to 250kg.

4. How can I ensure the quality of Calcium carbonate supplied by Multichem?
We adhere to stringent quality control processes to ensure that our products meet the highest standards of purity and effectiveness. They undergo rigorous testing and quality checks to guarantee that they comply with industry specifications. We provide a Certificate of Analysis (CoA) with every shipment to ensure transparency and quality assurance.