| Parameter |
Details |
| English Name |
Magnesium Citrate |
| Synonyms |
Trimagnesium Dicitrate |
| E Number |
E332 |
| Appearance |
White crystalline powder |
| Solubility |
Solubility varies with hydration forms |
| Odor |
Odorless |
| Available Forms |
Anhydrous, Nonahydrate, Dodecahydrate |
Magnesium Citrate Hydrate Grades Comparison Table
| Hydrate Type |
Common Name |
CAS Number |
Molecular Formula |
Core Characteristics |
Main Applications |
| Anhydrous |
Magnesium Citrate Anhydrous |
3344-18-1 |
C₆H₄Mg₃O₇ |
Highest magnesium content, low moisture, good thermal stability |
Dietary supplements, pharmaceutical formulations |
| Nonahydrate |
Magnesium Citrate Nonahydrate |
153531-96-5 |
C₆H₄Mg₃O₇·9H₂O |
Excellent water solubility, high bioavailability, moderate magnesium content |
Food fortification, magnesium supplement raw material, functional beverages |
| Dodecahydrate |
Magnesium Citrate Dodecahydrate |
1198-97-6 |
C₆H₄Mg₃O₇·12H₂O |
High crystal water, mild taste, stable crystal structure |
Food acidity regulator, nutritional powder, solid supplement formulations |
Product Overview
Magnesium Citrate (E345) is a series of food-grade organic chelated magnesium salts, mainly available in Magnesium Citrate Anhydrous, Magnesium Citrate Nonahydrate, and Magnesium Citrate Dodecahydrate. As a premium bioavailable magnesium fortifier and professional acidity regulator, it outperforms inorganic magnesium sources in absorption efficiency and gastrointestinal tolerance.
This product series stabilizes system pH, modifies unpleasant mineral metallic taste, optimizes powder fluidity, and prevents caking. It is extensively applied in dietary supplements, chewable tablets, multivitamin mineral premixes, and solid beverage formulations.
Character
1.All grades are odorless crystalline powder with clean, mild taste, no harsh bitterness, friendly for flavored food formulations.
2.Organic chelated magnesium structure delivers far higher bioavailability than magnesium oxide and magnesium hydroxide, ensuring efficient magnesium nutrient absorption.
3.Mild acidic buffering property enables precise pH adjustment without drastic system pH fluctuation, protecting formula stability.
4.Low gastrointestinal irritation at standard dosage, suitable for long-term nutritional supplement formulations.
5.Good thermal stability under conventional food processing and storage conditions, no easy decomposition or ingredient reaction.
6.Excellent powder dispersion performance, compatible with various vitamin and mineral premix systems.
7.Three water-content grades cover diverse formula demands: high flowability, balanced magnesium content, and mild taste customization.
8.Fully compliant with global food safety standards and religious certifications, suitable for worldwide food and supplement export.
Main Functions
1.High-Bioavailability Magnesium Fortification Function Serves as an efficient organic magnesium fortifier, providing easily absorbable magnesium nutrition for human body. It compensates daily magnesium deficiency, supports body basic metabolism, and is the core nutritional additive for dietary supplements and functional solid foods.
2.Professional Acidity Regulation & pH Buffering Function Acts as a stable acidity regulator in food systems. It moderately neutralizes excess acidity, balances overall formula sourness, maintains long-term stable pH value of tablets, powder premixes and solid beverages, and avoids quality deterioration caused by pH drift.
3.Professional Taste Modifying & Flavor Stabilizing Function Effectively covers and reduces the metallic bitter and astringent taste brought by inorganic minerals in compound premixes. It optimizes the mouthfeel of chewable tablets and solid drinks, locks fresh flavor during storage, and improves finished product palatability.
4.Anti-Caking & Powder Flow Optimizing Function Improves the bulk fluidity of mixed mineral and vitamin powders, reduces fine powder agglomeration and moisture caking during production, filling and storage. It ensures uniform ingredient mixing and consistent finished product quality.
Applications
1.Food & Dietary Supplement Industry
This Magnesium Citrate series is the preferred magnesium fortification and acidity regulation material for global nutraceutical manufacturers.
Magnesium Citrate Nonahydrate : – Maximum market dosage Widely used in regular dietary supplement tablets, hard capsules, daily multivitamin mineral premixes, and ordinary solid beverages. Its outstanding flowability and formula compatibility make it the most cost-effective and universal grade for mass production.
Magnesium Citrate Anhydrous: Applied in high-end nutritional powders, high-dose magnesium supplement tablets and capsules. Features high magnesium content and low moisture absorption, ideal for formulas requiring strict moisture control.
Magnesium Citrate Dodecahydrate: Mainly used in high-demand mild-taste chewable tablets, children’s nutritional powders and low-irritation functional solid drinks, focusing on taste optimization and mild formula performance.
2.Confectionery & Functional Solid Food
Suitable for pressed candies, functional snack powders and fortified cereal products. It achieves dual effects of mineral nutrition enhancement and taste optimization without affecting product original flavor and texture.
3. Pharmaceutical Industry
Pharma-grade Magnesium Citrate (mainly Nonahydrate and Anhydrous) is used in oral nutritional preparations and mild conditioning formulations, with limited industrial consumption, not the core business scope.
Packaging and Storage
Packaging: 25kg multi-ply paper bags with inner PE liner; jumbo bags (500kg/1000kg) for bulk shipment; fiber drum packaging available for pharmaceutical-grade products.
Storage Requirements: Store in cool, dry, ventilated warehouse. Keep away from moisture, strong acid substances, direct sunlight and high heat environment.
