Description
High Purity Calcium Carbonate (Electronic Grade) is engineered for advanced electronic and precision material applications requiring controlled trace metal content, stable crystal structure, and consistent particle size distribution.
Manufactured under strict in-house quality control, this calcite-phase CaCO₃ offers high chemical purity (≥99.98%) and tightly regulated impurity levels verified by ICP-OES/ICP-MS. Its controlled particle size distribution (D50 ≈ 1.26 μm) ensures excellent dispersion behavior and predictable thermal decomposition during high-temperature processing.
This product is specifically suitable for electronic ceramics, MLCC systems, electronic pastes, and other high-performance powder-based materials.
>Typical Technical Specifications
-Chemical Properties
CaCO₃ Purity: ≥ 99.98 wt%
Moisture (105°C): ≤ 0.20 wt%
Acid Insoluble Matter: ≤ 0.01 wt%
Loss on Ignition (950°C): 43.5 ± 0.5 wt%
pH (10% slurry, 25°C): 8.5 – 10.5
Conductivity (10% slurry): ≤ 50 μS/cm
-Trace Metal Impurities (ICP-OES / ICP-MS)
Mg ≤ 50 ppm
Si ≤ 30 ppm
Fe ≤ 30 ppm
Al ≤ 10 ppm
Na ≤ 10 ppm
Mn ≤ 10 ppm
Cu ≤ 10 ppm
S ≤ 5 ppm
Pb ≤ 2 ppm
As ≤ 1 ppm
Hg ≤ 0.5 ppm
Cd ≤ 0.5 ppm
-Particle Size Distribution (Laser Diffraction)
D10: 0.5 – 1.0 μm
D50: 1.1 – 1.5 μm
D90: ≤ 6.0 μm
>Key Features
1) High Chemical Purity with Controlled Trace Elements
CaCO₃ purity ≥ 99.98 wt% with tightly regulated trace metal levels verified by ICP-OES / ICP-MS analysis. Low Na, Fe, and heavy metal content minimizes ionic contamination risks in sensitive electronic systems.
2) Stable Calcite Crystal Structure
Thermodynamically stable calcite phase ensures predictable thermal decomposition behavior and structural consistency during high-temperature processing and sintering applications.
3) Controlled Thermal Decomposition Performance
Loss on Ignition (950°C) maintained at 43.5 ± 0.5 wt%, close to the theoretical value, providing consistent CO₂ release and stable volume change during firing processes.
4) Optimized Particle Size Distribution
Laser-controlled PSD (D50: 1.1–1.5 μm, D90 ≤ 6.0 μm) supports uniform dispersion, reduced agglomeration, and improved sintering uniformity in ceramic and composite systems.
5) Low Ionic Residue and Conductivity
Controlled conductivity (≤ 50 μS/cm, 10% slurry) reduces interference in dielectric and electronic ceramic formulations.
>Applications
High Purity Electronic Grade Calcium Carbonate is engineered for advanced electronic and precision material systems requiring strict impurity control and consistent powder performance.
1) Electronic Ceramics & MLCC Systems
Used as a controlled Ca source and functional filler in dielectric materials and multilayer ceramic capacitor formulations.
2) Semiconductor Support Materials
Applied in auxiliary material systems where controlled ionic content and stable phase structure are required.
3) Electronic Paste & Functional Fillers
Provides controlled decomposition and particle size uniformity in thick-film pastes and composite formulations.
4) Electrical Insulation & Dielectric Materials
Contributes to dimensional stability and consistent sintering behavior in insulation-grade ceramic components.
5) Advanced Powder Metallurgy & Precision Composites
Utilized in high-temperature powder systems requiring stable phase transformation characteristics.