Calcium Carbonate 1000mesh Fine Powder for Industrial Use

Product Overview
Calcium carbonate (CaCO₃) is a highly versatile, inorganic mineral powder characterized by its exceptional purity and wide-ranging industrial applications. This odorless, tasteless white powder exhibits excellent biocompatibility, making it suitable for sensitive applications including food, pharmaceuticals, and cosmetics. As one of nature's most abundant minerals, our refined calcium carbonate combines cost-effectiveness with superior performance characteristics.

Chemical & Physical Properties

• Molecular Formula: CaCO₃

• Molecular Weight: 100.09 g/mol

• Appearance: Ultra-fine white powder

• Bulk Density: 0.6-1.2 g/cm³ (varies by grade)

• Refractive Index: 1.59

• Mohs Hardness: 3.0

• pH Value: 8.0-9.5 (10% aqueous suspension)

Solubility Characteristics

• Water solubility: 0.0014 g/100 mL (25°C)

• Soluble in:
  • Dilute acids (HCl, HNO₃) with effervescence
  • Ammonium chloride solutions

• Insoluble in:
  • Alcohol
  • Organic solvents
  • Neutral aqueous solutions

Thermal Properties

• Decomposition Temperature: 825°C (calcite)

• Endothermic Decomposition:
  CaCO₃ → CaO + CO₂ (ΔH = 178 kJ/mol)

• Specific Heat Capacity: 0.84 J/g·K

Manufacturing Process

1. Raw Material Selection: High-purity limestone from certified quarries

2. Mechanical Processing:

   • Primary crushing to <50mm

   • Precision grinding with classifier mills

3. Chemical Refinement:

   • Acid washing for impurity removal

   • Surface modification (for specific grades)

4. Quality Control:

   • Laser particle size analysis

   • Brightness measurement

   • Chemical purity verification

Product Grades & Specifications

Industrial Grade

• Particle Size: 5-45μm

• CaCO₃ Content: ≥98%

• Applications:
  • Plastic fillers (PP, PVC)
  • Rubber compounding
  • Paint extenders
  • Adhesive formulations

Food & Pharmaceutical Grade

• Purity: ≥99%

• Heavy Metals: <10ppm

• Microbial Limits: <1000 CFU/g

• Certifications:
  • FDA 21 CFR 184.1
  • EU E170
  • USP/EP compliance

• Applications:
  • Dietary supplements
  • Pharmaceutical excipients
  • Food fortification
  • Baking powder

Cosmetic Grade

• Whiteness: ≥95% (ISO)

• Particle Size: 3-15μm

• Oil Absorption: 20-35g/100g

• Applications:
  • Makeup formulations
  • Toothpaste
  • Skincare products
  • Personal care powders

Paper Coating Grade

• Brightness: 90-96% ISO

• Particle Shape: Precisely controlled rhombohedral

• Applications:
  • Paper filling (10-30% loading)
  • Coating pigments
  • Improved printability

Technical Advantages

1. Cost Performance:

   • 30-50% cost reduction versus alternative fillers

   • High loading capacity (up to 70% in some polymers)

2. Functional Benefits:

   • Enhanced mechanical properties

   • Improved dimensional stability

   • Superior surface finish

   • Increased opacity

   • Better rheological control

3. Processing Advantages:

   • Reduced equipment wear

   • Lower energy consumption

   • Improved dispersion

   • Enhanced flow characteristics

Quality Assurance

• ISO 9001:2015 certified production

• Batch-to-batch consistency control

• Comprehensive testing protocols:
  • XRD crystallography
  • BET surface area
  • ICP elemental analysis
  • Laser diffraction sizing
  • Whiteness measurement

Packaging Options

• Standard:
  • 25kg multi-wall paper bags
  • 500kg FIBC bulk bags
  • 1-ton super sacks

• Custom:
  • Customer-labeled packaging
  • Special moisture barriers
  • Dedicated production runs

Storage & Handling

• Recommended Conditions:
  • Temperature: 10-30°C
  • Humidity: <65% RH
  • Ventilated, dry environment

• Shelf Life: 36 months in original packaging

• Safety Precautions:
  • Dust control measures
  • N95 respirator for powder handling
  • Eye protection recommended

Technical Support Services

• Application development

• Formulation optimization

• Processing troubleshooting

• Regulatory compliance guidance

• Custom product engineering

Market Applications

• Plastics Industry: 40-60% filler in PVC, PP, PE

• Paper Manufacturing: 15-35% filler content

• Paints & Coatings: 10-25% extender

• Rubber Products: 20-50% reinforcement

• Construction Materials:
  • Putty (30-50%)
  • Sealants (15-30%)
  • Tile adhesives

• Consumer Goods:
  • Toothpaste (20-40%)
  • Cosmetics (5-15%)
  • Food products (1-5%)

Environmental Profile

• Naturally occurring mineral

• Non-toxic and biodegradable

• REACH registered

• RoHS compliant

• Carbon footprint reduction potential

Ordering Information

• Minimum Order Quantity: 500kg

• Sample Availability: 1kg technical samples

• Lead Time: 2-3 weeks standard production

• Global Logistics: Supported worldwide

This comprehensive technical specification demonstrates why calcium carbonate remains the filler of choice across diverse industries. For application-specific recommendations or custom formulations, our technical team provides expert consultation to optimize your product performance.

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