Calcium Carbonate 1800mesh Fine Powder for Paper Coating
Product Overview:
Calcium carbonate stands as a superior inorganic compound renowned for its exceptional versatility across industrial applications. This odorless, non-toxic white powder exhibits remarkable chemical stability and physical properties that make it an indispensable additive in modern manufacturing processes. As a naturally abundant mineral derivative, our refined calcium carbonate combines cost-effectiveness with high-performance characteristics, offering manufacturers an optimal balance between quality and operational efficiency.
Physical Properties:
- Appearance: Ultra-fine white crystalline powder
- Bulk Density: 0.9-1.1 g/cm³
- Particle Size: Customizable from 325 mesh to 2500 mesh
- Moisture Content: <0.2% (inherently anhydrous)
- Whiteness: ≥97% (ISO brightness scale)
- Refractive Index: 1.59
- Specific Surface Area: 5-25 m²/g (adjustable)
Chemical Stability:
Our calcium carbonate demonstrates outstanding chemical inertness under standard conditions:
- Water Solubility: 0.0013 g/100mL at 25°C (practically insoluble)
- Alcohol Resistance: Insoluble in ethanol and methanol
- Acid Reactivity: Reacts with strong acids (HCl, HNO₃) under controlled conditions
- Thermal Decomposition: Begins at 825°C (1,517°F) yielding calcium oxide (CaO) and carbon dioxide (CO₂)
- pH Value: 8.5-9.5 (10% aqueous suspension)
Technical Advantages:
- Cost-Efficiency: Derived from abundant natural resources with minimal processing requirements
- Performance Enhancement:
- Improves mechanical strength in composite materials
- Enhances dimensional stability in polymer applications
- Optimizes rheological properties in liquid formulations
- Surface Modification Capability: Available in stearic acid-coated or uncoated variants
- Environmental Compliance: Meets REACH, FDA 21 CFR 175.300, and EU 10/2011 standards
- Customizable Parameters: Adjustable particle size distribution, oil absorption, and aspect ratio
Industry Applications:
1. Polymer & Plastics:
- Acts as functional filler in PVC, PE, PP, and engineering plastics
- Improves impact strength and heat deflection temperature
- Reduces material costs while maintaining mechanical properties
- Enhances surface finish in extruded profiles and injection-molded parts
2. Coatings & Paints:
- Provides excellent opacity and weather resistance
- Improves scrub resistance in water-based paints
- Optimizes viscosity and suspension stability
- Reduces VOC content in eco-friendly formulations
3. Paper Manufacturing:
- Serves as coating pigment for improved printability
- Enhances brightness and opacity in fine papers
- Functions as filler in tissue and packaging materials
- Reduces fiber consumption by up to 30%
4. Adhesives & Sealants:
- Controls viscosity and thixotropy
- Improves bonding strength in construction adhesives
- Enhances thermal stability in silicone sealants
- Reduces shrinkage during curing processes
5. Food & Pharmaceutical:
- FDA-approved as direct food additive (E170)
- Functions as calcium fortification agent in dietary supplements
- Serves as excipient in tablet formulations
- Used in chewing gum production and baking powder
6. Construction Materials:
- Key component in self-leveling compounds and grouts
- Improves workability in cement-based products
- Enhances durability in terrazzo flooring
- Essential filler in joint compounds and wall putties
7. Specialty Applications:
- Toothpaste formulations (abrasive index 30-50 RDA)
- Cosmetic products (talc replacement in powders)
- Rubber compounding (reinforcing filler)
- Textile manufacturing (delustering agent)
Quality Assurance:
Our production process adheres to strict quality control protocols:
- ISO 9001:2015 certified manufacturing facilities
- Batch-wise testing for chemical purity and physical parameters
- Heavy metal content: <10 ppm (As, Pb, Hg, Cd)
- Microbial count: <100 CFU/g (pharmaceutical grade available)
- Loss on ignition: <0.8% at 1000°C
Technical Specifications Table:
| Parameter | Standard Grade | Coated Grade | Pharma Grade |
|---|---|---|---|
| CaCO₃ Content (%) | ≥98.5 | ≥97.0 | ≥99.0 |
| MgO Content (%) | ≤0.5 | ≤0.5 | ≤0.1 |
| Fe₂O₃ Content (%) | ≤0.05 | ≤0.05 | ≤0.01 |
| HCl Insolubles (%) | ≤0.1 | ≤0.1 | ≤0.05 |
| Sieve Residue (45μm) | ≤0.1 | ≤0.2 | ≤0.05 |
| Oil Absorption (g/100g) | 15-25 | 20-30 | 12-18 |
| pH Value | 8.5-9.5 | 8.0-9.0 | 8.5-9.0 |
Packaging & Storage:
- Available in 25kg multi-layer paper bags with PE lining
- Bulk packaging in 1MT super sacks with moisture barrier
- Store in cool, dry environment (<30°C, RH<60%)
- Shelf life: 24 months from production date
- Non-flammable, non-explosive, classified as non-hazardous cargo
Environmental & Safety Profile:
- ECOCERT approved for cosmetic applications
- OSHA HazCom Standard 2012 compliant
- GHS Classification: Not classified as hazardous
- Proper PPE recommended for bulk handling: N95 mask, safety goggles
This comprehensive technical profile positions our calcium carbonate as the optimal choice for manufacturers seeking to enhance product performance while maintaining cost efficiency. Contact our technical team for customized solutions tailored to your specific application requirements.
| Item | Unit | Specification |
| Specific surface area | m²/g | 17500 |
| D97 | μm | 7.2 |
| Average particle size | μm | 2 |
| Max particle size | μm | 13.02 |
| Whiteness | % | 95.5 |
| Bulk density trapped | g/cm³ | 0.87 |
| True specific gravity | g/cm³ | 2.7 |
| PH value | / | 9±0.5 |
| Moisture | % | 0.3 |
| Oil absorption | cc/100g | 27 |
| Water absorption | cc/100g | 28 |
| Dop absorption | cc/100g | 47 |
| Residue on 325 mesh | % | 0 |
| Sediment volume | 60min | 39 |
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| Company Name | Beijing TDD E-commerce Co., Ltd | البلد / المنطقة | China |
| نوع الأعمال | متجر عبر الإنترنت | حجم الشركة | 2000 |
| تأسس | December 18, 2014 | ||
| العنوان | Building No.3, Area 6, No.188, West of South Forth Ring Rd, Beijing, China | ||
| المنتجات الرئيسية | راتنج PVC ، PP ، PE ، Pet ، ثاني أكسيد التيتانيوم ، Pigment ، إطارات السيارات | ||
| International Commercial Terms(Incoterms): | FOB, CFR, CIF, FCA | ||
| Terms of Payment: | LC, T/T, D/P | ||
| Average Lead Time: | Peak Season Lead Time: one month, Off Season Lead Time: within 15 workdays | ||
| Number of Foreign Trading Staff: | 20~40 People | ||
| Main Markets: | Southeast Asia, Africa, Mid East | ||
| Nearest Port: | Tianjin,Qingdao,Shanghai | ||
| Import & Export Mode: | Have Own Export License | ||
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