Bright Odorless Magnesium Carbonate for Food Supplement Bakery Granules

• Customization: Available
• CAS No.: 39409-82-0
• Formula: Mgco3
• Model NO.: HPMGCG39
• EINECS: 208-915-9
• Solubility: Slightly Soluble in Water, Soluble in Acid
• Certification: COA, ISO
• Classification: Mgco3
• Purity: ≥99%
• Type: Magnesium Carbonate
• Grade Standard: Medicine Grade
• Kind: No Salt Oxide
• Quality: First Class
• Sample: Free
• Other Name: Magnesium Carbonate
• Assay: ≥41%
• Color: White
• Shape: Granules
• Granules Size: 0.1-3mm (Customizable)
• pH: 9-10
• Melting Point: 350 °C
• Storage Conditions: Keep in a Cool and Dry Place
• Shelf Life: 24 Month
• Environmental Protection: Yes
• Relative Molecular Mass: 466
• Transport Package: Kraft Paper Bag
• Specification: 25Kg/bag
• Trademark: RunFu
• Origin: China
• HS Code: 28369200
• Production Capacity: 10000ton/Years

Product Description

Product Overview & Executive Summary

High Purity Magnesium Carbonate Granules - Product Datasheet & Specifications

Product Name: High Purity Magnesium Carbonate Granules
Synonym: Granular Magnesite, High Purity MgCO₃ Granules, Synthetic Magnesium Carbonate
Chemical Formula: MgCO₃
CAS Number: 546-93-0
EINECS Number: 208-915-9

Product Description

                                                                                                                                                                                                                                                                                                                                

High Purity Magnesium Carbonate Granules are synthesized by controlled precipitation from purified magnesium sources, followed by filtration, drying, granule formation, and high-temperature refinement. Each granule possesses a dense, smooth surface and uniform internal porosity, resulting in excellent physical integrity and consistent bulk density.

The product is characterized by high MgCO₃ content (≥99%), extremely low levels of iron, calcium, and sulfates, and superior whiteness (≥95%). With its neutral chemical behavior and controlled thermal decomposition, it serves as a reliable raw material for magnesium oxide sintering, high-purity catalysts, and ceramic insulation coatings.

Available in granule size ranges of 0.3–2.0 mm or customized specifications, this product is optimized for automated dosing and uniform dispersion. It is non-hygroscopic, easy to transport, and maintains its structure under mechanical stress.

Key Features

Exceptional Purity: MgCO₃ content ≥99.0% with low trace contaminants.
Granular Efficiency: Improved flow and handling compared to fine powders.
High Whiteness & Uniformity: Excellent optical brightness for premium applications.
Low Moisture & Dust: Stable during long-term storage and handling.
Controlled Thermal Behavior: Decomposes predictably to high-purity MgO.
Tailored Particle Size: Custom granule sizes (0.3–2.0 mm) available upon request.
Low Impurity Levels: Minimized Fe, Ca, and SO₄ ensures high chemical stability.
Excellent Physical Strength: Resistant to crushing and attrition.

Detailed Technical Specifications & Analytical

Chemical Composition & Purity

Parameter	Specification	Standard Grade	High Purity Grade	Test Method
Magnesium Carbonate (MgCO3)	≥ 98.0%	98.5–99.0%	≥ 99.3%	Gravimetric
Loss on Ignition (LOI)	32–34%	33%	33–34%	950°C ± 25°C
Calcium Carbonate (CaCO3)	≤ 0.3%	≤ 0.2%	≤ 0.1%	ICP-OES
Iron (as Fe2O3)	≤ 0.02%	≤ 0.015%	≤ 0.010%	Colorimetric
Chlorides (as Cl)	≤ 0.02%	≤ 0.015%	≤ 0.01%	Potentiometric
Sulfates (as SO4)	≤ 0.05%	≤ 0.04%	≤ 0.03%	Gravimetric
Heavy Metals (as Pb)	≤ 0.001%	≤ 0.001%	≤ 0.0005%	USP/EP
Arsenic (As)	≤ 0.00005%	≤ 0.00005%	≤ 0.00003%	ICP-MS
SiO2	≤ 0.10%	≤ 0.08%	≤ 0.05%	XRF
Moisture Content	≤ 0.3%	≤ 0.2%	≤ 0.1%	Gravimetric

Physical Properties

Parameter	Specification / Typical Value	Test Method	Notes
Appearance	White, free-flowing granules	Visual	Dust-free, consistent shape
Granule Size Range	0.3–2.0 mm (customizable)	Sieving	Other sizes available
Bulk Density (Loose)	0.6–1.0 g/cm³	ASTM B527	Adjustable during granulation
Tapped Density	0.9–1.2 g/cm³	ASTM B527	—
Whiteness	≥ 95%	CIE Lab	High brightness
Specific Surface Area (BET)	8–25 m²/g	BET	Controlled porosity
Oil Absorption	25–45 g/100g	ASTM D281	Indicates moderate porosity
Thermal Decomposition Temp.	300–500°C	Furnace Test	Converts to MgO
Solubility	Insoluble in water; soluble in acids	—	—
Hardness	≥ 3.0 N/granule	Compression	Mechanically stable

Key Characteristics & Functional Advantages

                                                                                                                                                                                                                                                                                                                              

High Purity and Consistency: Ensures reliable performance in high-end processing.
Stable Physical Form: Granules maintain integrity under vibration or compression.
Predictable Calcination: Converts to reactive or sintered MgO upon controlled heating.
Low Contamination Risk: Reduced airborne dust ensures cleaner working environments.
Flowability and Dispersion: Enables accurate metering in automated systems.
Moisture Resistance: Non-hygroscopic and easily stored.
Thermal Stability: Excellent behavior up to decomposition temperature.

Primary Applications & Industries Served

High-Performance Ceramics: Raw material for sintered magnesia refractories and insulating ceramics.
Catalyst and Adsorbent Carriers: Uniform granules enhance dispersion and surface area control.
Flame Retardants: Used as a precursor for magnesium hydroxide and oxide additives.
Electronic Insulation Materials: Essential for MgO-based coatings and fillers.
Pharmaceutical and Nutraceutical Applications: As an antacid and magnesium supplement base.
Environmental Applications: Used in flue gas treatment, water purification, and heavy metal adsorption.

Packaging, Storage & Handling

Packaging Options:

- 25 kg multi-layer kraft bag with PE inner liner
- 500 kg / 1000 kg jumbo bag
- Customized packaging available
Storage Conditions: Store in a cool, dry, well-ventilated area, away from moisture and acidic gases.
Shelf Life: 24 months in sealed packaging.
Handling Precautions:

- Avoid dust generation during loading/unloading.
- Use standard PPE (mask, gloves, goggles).
- Keep container closed to prevent contamination.

Safety Information (Summary of SDS)

GHS Classification: Not classified as hazardous under GHS.
Hazard Statements: May cause mild irritation upon prolonged dust exposure.
First Aid Measures:

- Inhalation: Move to fresh air.
- Eye Contact: Rinse with water for several minutes.
- Skin Contact: Wash with mild soap and water.
- Ingestion: Non-toxic in small quantities; seek medical advice if discomfort persists.

Quality Assurance & Customization

Production Standards: ISO 9001:2015 certified quality system.
Analytical Verification: Each batch accompanied by Certificate of Analysis (CoA) confirming chemical purity and granule uniformity.
Regulatory Compliance: Conforms to REACH, RoHS, and ASTM specifications.
Customization Options:

- Tailored granule size and bulk density.
- Optional high-reactivity grade for thermal conversion applications.
- Low-iron variant for electronic and optical applications.
- Custom packaging for industrial and OEM clients.

Disclaimer

                                                                                                                                                                                                                                              
The data and information are offered in good faith based on our current manufacturing and testing experience. Users must verify the suitability of the product for their specific application before use. Specifications are subject to change without prior notice. Refer to the official Safety Data Sheet (SDS) for detailed safety guidance.