Xinweiye Brand Calcium Carbonate 1250mesh Fine Powder for Industrial Use

‌Product Overview‌

Calcium carbonate stands as the cornerstone of industrial mineral applications, offering an unparalleled combination of natural abundance, cost efficiency, and versatile functionality. This odorless, non-toxic white powder exhibits exceptional physicochemical stability, making it the preferred choice for manufacturers across 30+ industries. Sourced from high-purity limestone deposits and processed through advanced micronization technologies, our calcium carbonate delivers consistent performance as both a primary filler and a functional additive in diverse formulations.

‌Key Physicochemical Properties‌

‌Inherent Stability‌

• ‌Chemical Composition‌: 99.2% minimum CaCO₃ content
• ‌Crystalline Structure‌: Calcite and aragonite polymorphs (thermally stable up to 825°C)
• ‌Moisture Resistance‌: <0.2% water absorption at 65% RH
• ‌Solubility Profile‌:
  • Water: 0.0013 g/100ml at 20°C
  • Organic solvents (ethanol, acetone): <0.01% solubility
  • Acid Reactivity: Decomposes in dilute HCl/HNO₃ under heat (CaO + CO₂ evolution)

‌Optimized Physical Characteristics‌

• ‌Particle Size‌: Adjustable from coarse 3μm granules to ultrafine 0.07μm nanoparticles
• ‌Brightness‌: 96-98% ISO whiteness (optical enhancement in end products)
• ‌Bulk Density‌: 0.75-1.15 g/cm³ (process-specific optimization available)
• ‌Surface Area‌: 2-35 m²/g (BET method for dispersion control)

‌Cross-Industry Application Excellence‌

‌1. Polymer & Plastic Engineering‌

• ‌PVC Products‌: Enhances impact strength by 15-25% at 30-50 phr loading
• ‌Polyolefin Films‌: Reduces haze to <5% while maintaining 90%+ light transmission
• ‌Automotive Composites‌: Lowers coefficient of thermal expansion by 0.8-1.2%

‌2. Coatings & Inks‌

• ‌Architectural Paints‌: Achieves 10,000+ wet scrub cycles (ASTM D2486 compliance)
• ‌Powder Coatings‌: Controls gloss levels between 15-85 GU at 60° angle
• ‌Printing Inks‌: Delivers 95-102% ink receptivity on coated papers

‌3. Paper Manufacturing‌

• ‌Filler Grade‌: Replaces 25-40% wood pulp with +3 ISO brightness improvement
• ‌Coating Grade‌: Achieves Parker Print Surf smoothness <1.3μm

‌4. Construction Materials‌

• ‌Tile Adhesives‌: Extends open time to 50-70 minutes without sagging
• ‌Self-Leveling Compounds‌: Maintains 260-300mm flow diameter (EN 12706)

‌5. Consumer Goods‌

• ‌Toothpaste‌: Safe abrasive action (RDA 35-50) with pH buffering
• ‌Cosmetics‌: Improves SPF efficacy in sunscreens via light scattering
• ‌Food Grade (E170)‌: Provides 38.5% calcium fortification in baked goods

‌6. Advanced Technologies‌

• ‌3D Printing‌: Reduces warpage in PLA filaments by 60-75%
• ‌Battery Components‌: Enhances separator thermal stability to 150°C

‌Competitive Advantages‌

‌Economic Value Creation‌

• Reduces formulation costs by 20-45% versus virgin polymer systems
• Enables 25-60% TiO₂ substitution in coatings without opacity loss
• Lowers processing energy consumption by 12-18% in extrusion applications

‌Technical Superiority‌

• ‌Reinforcement‌: Increases tensile modulus in elastomers by 18-30%
• ‌Rheology Control‌: Adjusts adhesive viscosity within 5,000-50,000 cP range
• ‌Thermal Management‌: Boosts HDT in engineering plastics by 10-35°C

‌Sustainability Leadership‌

• ‌Carbon Footprint‌: 0.28-0.33 tCO₂e/ton (cradle-to-gate)
• ‌Circular Economy‌: 97% recyclability in closed-loop production
• ‌Regulatory Compliance‌: Meets FDA 21 CFR 175.300, EU 10/2011, and REACH

‌Customization Capabilities‌

• ‌Surface Modification‌:
  • Stearic acid coating for hydrophobic polymer blends
  • Silane treatment for composite interface enhancement
  • Titanate coupling for high-loading masterbatches
• ‌Particle Engineering‌:
  • Narrow PSD control (Span <1.2) for precision formulations
  • Nano-grade dispersion (D90 <150nm) for transparent composites
  • Acid-resistant coating for pH <3 environments

‌Quality Assurance & Logistics‌

‌Stringent Quality Control‌

• XRF-verified purity ≥98.5% CaCO₃
• Heavy metal limits: Pb <2ppm, As <1ppm, Hg <0.1ppm
• Microbial counts: <100 CFU/g for pharmaceutical grades

‌Global Supply Solutions‌

• Packaging: 25kg moisture-proof bags to 1MT bulk super sacks
• Shelf Life: 36 months in original sealed packaging
• Compliance: IMDG non-hazardous classification for sea freight

This premium-grade calcium carbonate redefines industrial material economics, combining nature’s abundance with cutting-edge processing technology. Our technical team provides application-specific support from prototype development to commercial-scale integration, ensuring optimal performance in your unique formulation environment.

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