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Limestone (CaCO₃)

Limestone is a sedimentary rock composed primarily of calcite, a calcium carbonate mineral, CaCO₃. It is hydrophobic and is produced by crushing, grinding, precipitation, and classifying high purity, white, and calcite limestone. Purities available from 98% to 99.9%
Detailed Particle Size Information

Precipitated CaCO₃ powder granulations are available down to nanoparticles as fine as 30 nanometers

Grades Offered

Pharmaceutical (USP) grade
Food (FCC) grade
Electronic grade
Optical grade

Typical Applications

Limestone has a wide variety of uses including in plastics, rubber, coatings, inks, adhesives, and soil conditioners. It is used in building products as a plastic filler, ceramic flux, and asphalt filler. It is used in chemical processing, glass production, water treatments, pesticide granules, dusting agents, welding rod coatings, thermosets, thermoplastics, paints, coatings, adhesives, sealants, and rubbers. It also is utilized by the pharmaceutical, toothpaste, and food additive industries.

Packaging Options

50 lb. bags, poly-lined fiber drums, bulk bags & loose bulk


Limestone TSCA (SARA Title III) Status:
For further information, please call the EPA Office of Chemical Safety and Pollution Prevention (OCSPP) at 202-564-2902.
Limestone CAS Numbers
Calcium Carbonate CAS# 471-34-1
Calcium Carbonate CAS# 1317-65-3

Add Limestone (CaCO₃) To Your Quote

Select Specifications Available

  • Coarse Granules
  • Sintered Pieces
  • Targets
  • Various Grades of Ground/ Pulverized CaCO₃
  • Various Grades of Precipitated CaCO₃


  • Units
  • Pieces
  • Grams
  • Troy Ounces
  • Pounds
  • Kilograms
  • Metric Tons
  • Net Tons
  • Feet
  • Meters
  • Inches
  • Centimeters
  • Millimeters
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