Technical Specifications of Calcium Carbonate Products
Technical Specifications of Calcium Carbonate Products
At Ziprus Chemicals, we offer a diverse range of high-quality calcium carbonate products tailored to meet the specific requirements of various industries. Our products are characterized by precise particle size distributions, exceptional purity levels, and strict adherence to industry standards. Below is an overview of the technical specifications for our primary calcium carbonate offerings.
Our Ground Calcium Carbonate is derived from pure limestone and processed to achieve consistent quality suitable for applications in plastics, paints, paper, and adhesives.
Chemical Composition
• Calcium Carbonate (CaCO₃): ≥ 98.5%
• Magnesium Oxide (MgO): ≤ 0.05%
• Silicon Dioxide (SiO₂): ≤ 0.02%
• Iron Oxide (Fe₂O₃): ≤ 0.01%
• Aluminum Oxide (Al₂O₃): ≤ 0.01%
• Loss on Ignition (LOI): 43.89%
Physical Properties
• Brightness (RY): ≥ 96.5%
• Whiteness: ≥ 98.5%
• Refractive Index: 1.59
• Moisture Content: ≤ 0.3%
• Hardness (Mohs): 3.0
• Density: 2.73 g/cm³
• pH Value: ≤ 9.0
• Oil Absorption: 14.5 ± 1 g/100g
• Bulk Density: 0.9 ± 0.05 g/cm³
Particle Size Distribution
We offer various grades with specific particle size distributions to suit different applications:
• HC 2 – 20 M
• Particles < 2 μm: 25 ± 2%
• Main Particle Size (D50): 5.5 ± 0.2 μm
• Top Cut (D98): 25 ± 1.0 μm
• HC 2 – 25 M
• Particles < 2 μm: 30 ± 2%
• Main Particle Size (D50): 4.5 ± 0.2 μm
• Top Cut (D98): 20 ± 1.0 μm
Note: Additional grades are available upon request to meet specific application needs.
Precipitated Calcium Carbonate (PCC)
Our Precipitated Calcium Carbonate is synthesized to achieve ultra-fine particle sizes and high purity, making it ideal for applications in pharmaceuticals, food, cosmetics, and high-performance coatings.
Chemical Composition
• Calcium Carbonate (CaCO₃): 98.00%
• Silicon Dioxide (SiO₂): 0.10%
• Iron Oxide (Fe₂O₃): 0.05%
• Aluminum Oxide (Al₂O₃): 0.10%
• Magnesium Carbonate (MgCO₃): 0.80%
Physical Properties
• Bulk Density: 0.60 g/cm³
• Specific Gravity: 2.71 g/cm³
• Whiteness: 96.0
• pH Value: 9.5
• Specific Surface Area: 7.0 m²/g
Particle Size Distribution
We provide PCC in various grades with tailored particle sizes:
• Grade L/A
• d50: 0.39 microns
• Top Cut: 1.91 microns
• Grade L/N
• d50: 1.50 microns
• Top Cut: 2.91 microns
• Grade L/L
• d50: 1.60 microns
• Top Cut: 5.10 microns
Note: Custom grades are available to meet unique application requirements.
Compliance with Industry Standards
Our calcium carbonate products comply with stringent industry standards to ensure quality and safety:
• Food and Pharmaceutical Grades: Our PCC meets the analytical specifications of BP, FCC, Ph. Eur., USP, and E170, with purity levels ranging from 98.5% to 100.5% based on the anhydrous substance.
• Certifications: We hold certifications including Kosher, Halal, FSSC 22000, and ISO 9001:2015, reflecting our commitment to quality management and product safety.
Internal Links
For more information about our products and services, explore the following resources:
External Links
To learn more about calcium carbonate specifications and applications, consider these authoritative sources:
• Calcium Carbonate Specifications – Essential Minerals
• [Precipitated Calcium Carbonate –
