Product Details
| Product Name: Magnesium Gluconate | CAS No.: 3632-91-5 |
| EC-No.: 222-848-2 | Min. Order: 1ton |
| Purity: 99% | Supply Ability: 1000T/M |
| Release date: 2025/11/04 |
Product Name: Magnesium Gluconate
CAS No.: 3632-91-5
Molecular Formula: C12H22MgO14
Molecular Weight: 414.6 g/mol
1. Product Description
Magnesium Gluconate is the magnesium salt of gluconic acid. It appears as a white to off-white crystalline powder, odorless, with a slightly bitter taste. It is highly soluble in water and commonly used as a mineral supplement due to its good bioavailability and gastrointestinal tolerance compared to inorganic magnesium salts.
2. Typical Properties
| Property | Specification Range |
|---|---|
| Appearance | White to off-white crystalline powder |
| Assay (on dry basis) | ≥ 97.0% (Food/Pharma Grade) ≥ 95.0% (Industrial Grade) |
| Magnesium Content | 5.5 – 6.5% |
| Loss on Drying | ≤ 12.0% |
| pH (10% solution) | 6.0 – 7.5 |
| Solubility | Freely soluble in water, insoluble in ethanol |
| Heavy Metals | ≤ 10 ppm (Food/Pharma Grade) ≤ 20 ppm (Industrial Grade) |
| Lead (Pb) | ≤ 2 ppm (Food/Pharma Grade) |
| Arsenic (As) | ≤ 2 ppm (Food/Pharma Grade) |
| Chloride (Cl?) | ≤ 0.05% |
| Sulfate (SO?2?) | ≤ 0.05% |
| Reducing Substances | ≤ 1.0% |
3. Microbiological Limits (Food/Pharma Grade only)
| Test | Specification |
|---|---|
| Total Plate Count | ≤ 1000 cfu/g |
| Yeast & Mold | ≤ 100 cfu/g |
| E. coli | Absent |
| Salmonella | Absent |
4. Applications
Food/Pharma Grade:
Nutritional supplement in tablets, capsules, powders, and functional beverages.
Magnesium fortification in food and pharmaceutical preparations.
Supports muscle function, cardiovascular health, nerve transmission, and energy metabolism.
Industrial Grade:
Used as a stabilizer, buffering agent, or intermediate in chemical formulations.
Can be applied in animal nutrition as a feed additive.
5. Packaging & Storage
Packaging:
25 kg bags or fiber drums with inner polyethylene liner.
Storage:
Store in a cool, dry place away from direct sunlight and moisture.
Keep container tightly closed.
Shelf Life:
24 months under proper storage conditions.
6. Safety & Regulatory Information
Magnesium Gluconate is Generally Recognized as Safe (GRAS) for food use.
Complies with USP / FCC standards (Food/Pharma Grade).
Industrial Grade is intended for technical applications and not for direct human consumption.
Safety Data Sheet (SDS) available upon request.
Company Profile Introduction
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- Since: 2025-04-07
- Address: C-309, No. 12 Yuzhou S. Rd, Haizhou, Lianyungang, Jiangsu, China

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