Product Overview & Executive Summary
Food Grade Magnesium Chloride Hexahydrate Granules - Product Datasheet & Specifications
Product Name: Food Grade Magnesium Chloride Hexahydrate Granules
Synonym: Magnesium Chloride 6-Hydrate, Food Grade MgCl2 Granules, E511 Magnesium Salt
Chemical Formula: MMgCl2·6H2O
CAS Number: 7791-18-6
EINECS Number: 232-094-6
Product Description
Food Grade Magnesium Chloride Hexahydrate Granules are high-purity, white crystalline granules produced through controlled crystallization and granulation of purified magnesium chloride solution obtained from natural brine or seawater. This product contains approximately 46% magnesium chloride (MgCl2) and offers excellent solubility, stability, and uniformity.
Compared with flake or powder forms, these granules feature superior flowability, reduced dust generation, and consistent particle size, which facilitate automatic feeding, accurate dosing, and homogeneous blending in large-scale food and nutraceutical production.
The product meets FCC (Food Chemicals Codex) and EU E511 standards for food additives and complies with ISO 22000 and HACCP food safety management systems. Owing to its neutral taste, high bioavailability of magnesium ions, and low impurity levels, it is widely used in food, nutrition, beverage, and pharmaceutical industries as a coagulant, electrolyte, mineral supplement, and stabilizer.
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Key Features
High Purity & Food Safety: MgCl2·6H2O ≥ 99.0%, meeting FCC and E511 food-grade requirements.
Granular Form Advantage: Easy to handle, low-dust, and ideal for automatic metering systems.
Excellent Solubility: Fully dissolves in water with no residue, forming a clear and neutral solution.
Nutritional Value: Highly bioavailable source of dietary magnesium.
Controlled Granule Size: Available in 0.5–3 mm, with customizable particle distribution.
Stable Storage Performance: Resistant to caking and moisture-induced liquefaction under normal conditions.
Detailed Technical Specifications & Analytical
Chemical Composition & Purity
| Parameter | Specification | Standard Grade | Test Method |
Magnesium Chloride (MgCl2·6H2O) | ≥ 99.0% | 99.2% | Gravimetric |
Magnesium Chloride (as MgCl2) | ≥ 46.0% | 46.3% | Atomic Absorption |
| Calcium (as Ca) | ≤ 0.10% | 0.05% | ICP-OES |
Sodium (as Na) | ≤ 0.20% | 0.10% | ICP-OES |
Sulfates (as SO4) | ≤ 0.02% | 0.01% | Gravimetric |
Insoluble Matter in Water | ≤ 0.02% | 0.01% | Gravimetric |
Heavy Metals (as Pb) | ≤ 5 ppm | < 2 ppm | AAS |
| Arsenic (As) | ≤ 1 ppm | < 0.5 ppm | ICP-MS |
| Mercury (Hg) | ≤ 0.1 ppm | < 0.05 ppm | ICP-MS |
| Loss on Ignition | 46–48% | — | 550°C ± 25°C |
Physical Properties
Parameter | Specification / Typical Value | Test Method | Notes |
Appearance | White spherical granules (balls) | Visual | Smooth and uniform |
Odor & Taste | Odorless, slightly saline | Sensory | Food-safe |
| Bulk Density (Loose) | 0.95–1.10 g/cm³ | ASTM D1895 | — |
Particle Size | 1–10 mm (customizable) | Sieving | Uniform size distribution |
| pH (5% solution at 25°C) | 6.0–8.0 | pH Meter | Neutral to slightly alkaline |
| Solubility in Water (25°C) | 167 g/100 mL | Gravimetric | Highly soluble |
| Hygroscopicity | Moderate to strong | Observation | Store tightly sealed |
| Whiteness | ≥ 90% | CIE Lab | — |
| Moisture Content | ≤ 0.3% | Gravimetric | For storage stability |
Key Characteristics & Functional Advantages
Superior Handling Performance: Granular form reduces dust generation, providing clean and efficient material handling in production lines.
Uniform Dispersion: Ensures consistent magnesium ion release and stable formulation quality.
Food-Grade Purity: Free from ammonia, harmful salts, or heavy metals; ideal for direct food contact.
High Solubility & Reactivity: Fully dissolves to provide a bioavailable source of Mg²+ ions for beverages and supplements.
Stable Crystalline Structure: Prevents agglomeration during long-term storage under sealed conditions.
Environmental Sustainability: Derived from purified seawater using energy-efficient crystallization techniques.
Primary Applications & Industries Served
Food & Beverage Processing:
- Acts as a coagulant in tofu production.
- Used as a firming and stabilizing agent in canned foods and dairy products.
- Serves as a salt substitute and mineral fortifier in table salt and beverages.
Nutritional & Health Supplements:
- Provides bioavailable magnesium for dietary, sports, and electrolyte replenishment formulas.
- Used in functional foods, mineral tablets, capsules, and effervescent formulations.
Pharmaceutical & Medical Applications:
- Ingredient in oral rehydration salts (ORS) and magnesium supplements.
- Acts as a stabilizer and mineral carrier in specific drug preparations.
Other Industrial Uses:
- Utilized in desiccants, bath salts, fermentation processes, and other controlled humidity systems.
Packaging, Storage & Handling
Packaging Options: 25 kg PE-lined paper bags, 50 kg woven sacks, or 1000 kg FIBC (Big Bags).
Storage Recommendations: Keep in dry, cool, and well-ventilated environments. Protect from moisture and direct sunlight.
Shelf Life: 24 months from production date if stored in original sealed packaging.
Handling Precautions: Avoid direct contact with moisture or humid air. Reseal opened bags promptly. Use standard PPE (gloves, masks, safety glasses) when handling large volumes.
Safety Information (Summary of SDS)
GHS Classification: Non-hazardous under GHS guidelines for food-grade substances.
Hazard Statements: Hygroscopic material; may cause minor irritation upon prolonged contact.
First Aid Measures:
- Inhalation: Move to fresh air if dust is inhaled.
- Eye Contact: Rinse with clean water for several minutes.
- Skin Contact: Wash with soap and water; apply moisturizer if dryness occurs.
- Ingestion: Generally safe in small quantities; seek medical attention for excessive intake.
Quality Assurance & Customization
Manufacturing Standards: Produced under ISO 9001:2015, ISO 22000, and HACCP food safety systems.
Batch Certification: Each lot is accompanied by a Certificate of Analysis (CoA) confirming chemical and microbiological conformity.
Regulatory Compliance:
- Fully compliant with FCC, EU E511, GB 25584-2010, REACH, and RoHS.
- Meets international food additive and mineral supplement regulations.
Customization Capabilities:
- Adjustable granule size range (0.3–5 mm).
- Tailored moisture and magnesium content.
- Optional anti-caking treatment for improved storage.
- Private labeling and export-compliant packaging available.