Product Overview & Executive Summary
Food Grade Heavy Magnesium Carbonate Powder - Product Datasheet & Specifications
Product Name: Food Grade Heavy Magnesium Carbonate Powder
Synonym: MgCO3 Powder, Dense Magnesite Powder, Food Grade Magnesium Carbonate
Chemical Formula: MgCO3
CAS Number: 546-93-0
EINECS Number: 208-915-9
Product Description
Food Grade Heavy Magnesium Carbonate Powder is obtained via precipitation from high-purity magnesium salts, followed by filtration, washing, controlled drying, and fine milling. The powder exhibits ultra-uniform, dense particles, with magnesium carbonate content ≥98% and negligible impurities, fully compliant with food safety and regulatory requirements.
Its controlled moisture content (<0.5%), bulk density (0.5–0.8 g/cm³), and particle size (D50 10–40 μm) provide predictable solubility and functional performance in both liquid and solid food matrices. The powder's dense, non-caking structure allows long-term storage stability, easy handling, and uniform distribution in premixes and fortified products.
This product is widely utilized in nutritional supplements, functional foods, antacids, premixes, and beverage fortification, and can also act as a pH regulator, neutralizing agent, or magnesium enrichment source in food applications.
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Key Features
High Purity Food-Grade MgCO3: Ensures safety and consistency in food applications.
Dense Powder Form: Provides higher bulk density for compact blending and storage.
Uniform Particle Size: D50 10–40 μm allows predictable solubility and reactivity.
Excellent Stability: Resistant to moisture, CO2, and caking during storage and handling.
Enhanced Flowability: Smooth and accurate feeding in manual or automated processes.
Customizable Bulk Density & Particle Size: Tailored to specific food formulation needs.
Regulatory Compliance: Fully compliant with FDA, USP, FCC, and ISO food-grade standards.
Low Dust Generation: Minimizes loss and health hazards during handling.
Detailed Technical Specifications & Analytical
Chemical Composition & Purity
| Parameter | Specification | Standard Grade | High Purity Grade | Test Method |
Magnesium Carbonate (MgCO3) | ≥ 98% | 97–98% | ≥ 98% | Gravimetric |
| Loss on Ignition (LOI) | ≤ 35% | 33–35% | 32–34% | 950°C ± 25°C |
Calcium Carbonate (CaCO3) | ≤ 0.8% | 0.5% | ≤ 0.3% | ICP-OES |
Iron (as Fe2O3) | ≤ 0.05% | 0.03% | ≤ 0.01% | Colorimetric |
Chlorides (as Cl) | ≤ 0.05% | 0.03% | ≤ 0.02% | Potentiometric |
Sulfates (as SO4) | ≤ 0.10% | 0.08% | ≤ 0.05% | Gravimetric |
| Heavy Metals (as Pb) | ≤ 0.002% | Complies | ≤ 0.001% | USP/EP |
| Arsenic (As) | ≤ 0.0001% | Complies | ≤ 0.00005% | ICP-MS |
| Moisture Content | ≤ 0.5% | 0.4% | ≤ 0.3% | Gravimetric |
| Bulk Density (Loose) | 0.5–0.8 g/cm³ | 0.6 g/cm³ | 0.7 g/cm³ | ASTM B527 |
Physical Properties
Parameter | Specification / Typical Value | Test Method | Notes |
Appearance | White, fine, powder | Visual | Smooth, non-caking surface |
Particle Size Range (D50) | 10–40 μm (customizable) | Laser Diff. | Other sizes available on request |
| Specific Surface Area (BET) | 20–50 m²/g | BET | Moderate surface area for functional use |
Whiteness | ≥ 94% | CIE Lab | — |
| Oil Absorption | 30–60 g/100g | ASTM D281 | Indicates porosity |
| Solubility | Practically insoluble in water | — | Soluble in acids |
| Flowability | Excellent | ASTM D281 | Ensures uniform dosing |
| Refractoriness | ≥ 900°C | Furnace Test | Suitable for mild thermal applications |
Key Characteristics & Functional Advantages
High Purity & Food Safety: Fully compliant with food-grade standards; minimal heavy metals.
Dense Powder Form: Allows compact blending, storage efficiency, and stable handling.
Controlled Particle Size: Uniform solubility and performance in food and beverage matrices.
Stable & Non-Caking: Maintains quality under varied storage conditions.
Optimized Reactivity: Ideal for pH regulation, antacids, and magnesium enrichment.
Enhanced Handling: Suitable for manual or automated feeding systems.
Primary Applications & Industries Served
Nutritional Supplements: Tablets, powders, and fortified beverages.
Functional Foods & Beverages: Magnesium enrichment in shakes, juices, and drinks.
Antacids & Digestive Products: Safe food-grade ingredient for digestive formulations.
Premix Blends: Used in fortified premixes for food and beverage applications.
Food Additive: pH regulator, stabilizer, anti-caking agent, or drying agent.
Feed & Pet Nutrition: Supplies essential magnesium in animal nutrition.
Packaging, Storage & Handling
Packaging Options: 25 kg kraft paper bags with PE liner, 500/1000 kg big bags; vacuum-sealed available.
Storage: Store in cool, dry, ventilated area, away from moisture and CO2.
Shelf Life: 24 months when sealed.
Handling Precautions: Avoid dust inhalation; wear PPE including mask, goggles, gloves.
Safety Information (Summary of SDS)
GHS Classification: Not hazardous under GHS.
Hazard Statements: May cause mild irritation if dust contacts eyes or is inhaled.
First Aid Measures:
- Inhalation: Move to fresh air; seek medical attention if discomfort persists.
- Eye Contact: Rinse with clean water for several minutes.
- Skin Contact: Wash thoroughly with soap and water.
- Ingestion: Rinse mouth; consult medical advice if ingested in large quantities.
Quality Assurance & Customization
Quality Management System: Produced under ISO 9001:2015 standards.
Batch Traceability: Each shipment includes a Certificate of Analysis (CoA) confirming purity and physical properties.
Regulatory Compliance: Meets REACH, RoHS, USP, FCC, ISO standards for food and nutraceutical applications.
Customization Services:
- Tailored particle size distribution (5–50 μm D50).
- Adjustable bulk density and flowability for specific applications.
- Surface treatments to enhance dispersibility and solubility.
- Controlled precipitation and drying to optimize reactivity and functional performance.