Magnesium Gluconate
Magnesium Gluconate is the magnesium salt of gluconic acid, with the formula Mg(C₆H₁₁O₇)₂ and a molar mass of 414.50 g/mol for the anhydrous form. It is a fine white to off-white crystalline powder with a faint, neutral taste and good water solubility.
The compound is the gentlest organic magnesium salt in routine commercial use. It combines acceptable bioavailability with very low gastrointestinal irritation, which is why it is the magnesium form most often reached for in pediatric, geriatric, and clinical-nutrition contexts, and the form preferred for dairy and infant formula fortification.
We source bulk Magnesium Gluconate from top China manufacturers for our partners, working with several of them. The manufacturers are in Shandong, Zhejiang and Liaoning. A smaller requirement can ship in a combined container with other ingredients.
Please send the grade you need, the volume and your destination port, and we will come back with a solution and a price.
or call +86-21-6858 0751
- Packaging
- 25 kg kraft paper bag with PE inner liner
- ISO 9001
- HACCP
- Halal
- Kosher
Specifications
Grades / Types Available: N/A
| Item | Specification |
|---|---|
| Appearance | White fine powder |
| Assay | 98.0–102.0% |
| Magnesium Content | 5.0–5.5% |
| Loss on Drying | ≤3.0% |
| Reducing Substances | ≤1.0% |
| Chloride | ≤0.05% |
| Sulphate | ≤0.05% |
| Lead | ≤2 mg/kg |
| Arsenic | ≤3 mg/kg |
| Heavy Metals | ≤10 mg/kg |
| Solubility | Freely soluble in water |
| Zinc Content | 12.0%–13.0% |
| Purity | ≥98.0% |
| pH (1% Solution) | 5.0–7.0 |
| Shelf Life | 2 years |
| Storage Conditions | Cool, dry place, sealed packaging. |
| Size | 50-80mesh |
| EINECS | 206-076-3 |
| Formula | C12H22O14Zn |
| Brand | Fuxing |
Common Markets Grades
Magnesium Gluconate is graded by hydration state, particle size, and pharmacopoeial conformance.
The dihydrate is the most common commercial hydration form, with the formula Mg(C₆H₁₁O₇)₂·2H₂O and an elemental magnesium content of about 5.4 percent. An anhydrous form is also offered with a content of approximately 5.9 percent.
USP and Ph. Eur. pharmaceutical grades are the standard for oral supplements, infant formula, and parenteral solutions, with strict limits on reducing sugars, free gluconic acid, chloride, sulphate, and heavy metals.
Fine powder grades, with 95 percent of particles below 100 µm, are formulated for capsules, tablets, and beverage stick packs.
Granular grades, in the 200 to 600 µm band, are formulated for direct compression and for blends where uniform flow into high-speed tablet presses is required.
Applications
- Pediatric magnesium liquid drops and oral solutions where gastrointestinal tolerance is the limiting design parameter
- Magnesium fortification of fluid milk, evaporated milk, condensed milk, and dairy beverage bases
- Infant formula and follow-on formula for mineral fortification within Codex composition limits
- Magnesium-fortified yogurt drinks, kefir, and cultured beverages
- Effervescent magnesium tablets and powder sachets positioned on tolerance and palatability
- Clinical nutrition products including oral nutritional supplements and tube-feeding formulas
- Geriatric multivitamin and mineral preparations
- Bone-health combination tablets paired with calcium gluconate and vitamin D₃
- Plant-based beverages and meal replacements requiring a neutral-tasting magnesium source
- Effervescent multivitamin lines aimed at children and pregnant women
Brands Using Magnesium Gluconate
Widely-distributed consumer products that list Magnesium Gluconate on the ingredient label.
Brand names, product names and logos are the property of their owners. They appear here as published evidence that the ingredient is used, taken from the brand's own label or website. Their appearance is not an endorsement, and it does not mean the brand buys from us or from any manufacturer listed on this site.
China Manufacturers of Magnesium Gluconate
Top Magnesium Gluconate manufacturers in China.
- Liao Yang Teng Yuan Food Additive Factory6 ingredients in the directory
Shandong Xinhong Pharmaceutical Co., Ltd.9 ingredients in the directory
Shandong Zhongxing Food Technology Co., Ltd.8 ingredients in the directory- Zhejiang Ruibang Laboratories4 ingredients in the directory
Zhejiang Tianyi Food Additives Co., Ltd.10 ingredients in the directory
Company names and logos are the property of the manufacturers themselves. They are listed here because our own directory records them as producing this ingredient. A listing is not an endorsement by them, and we do not represent them or speak on their behalf.
How We Help Source Magnesium Gluconate
Direct Factory Sourcing
We run the whole process: selecting the manufacturer from the top Chinese food ingredient producers, negotiating the price, verifying quality, and coordinating the logistics. You deal with us instead of with several factories at once.
Original Packaging and Documents from the Manufacturer
The manufacturer sends your Magnesium Gluconate out of its own factory in the original packing, through to your destination port. The COA, COO, MSDS, TDS and any certifications reach you from the manufacturer as well.
Free Samples and Lead Time
We send 100 to 500 g free for your own laboratory to test and you cover only the courier, usually within 2 to 3 working days. ETD is usually within 7 to 15 days once the order is confirmed, and we check that date against the factory's own manufacturing schedule before we give it to you.
Combined Shipment
We can load Magnesium Gluconate together with other ingredients such as Sodium Acetate, Calcium Citrate and Sodium Lactate into one 20' FCL. If your quantity is small, we can also ship LCL.
Regulatory Status
Magnesium Gluconate is approved for food, supplement, and pharmaceutical use in essentially every regulated market.
In the European Union it carries the additive number E580. It is also listed on Annex II of Regulation (EU) 1170/2009 as a permitted magnesium source in food supplements and on Annex III of Regulation (EU) 609/2013 for foods intended for specific groups, including infant and follow-on formulas.
The U.S. Food and Drug Administration recognises the substance as GRAS for use as a nutrient under 21 CFR 184.1452, with specific provision for infant-formula fortification.
JECFA has reviewed magnesium salts as a group and assigned them acceptable status for use as food additives.
Pharmacopoeial monographs appear in the United States Pharmacopeia (USP), the European Pharmacopoeia (Ph. Eur.), and the Japanese Pharmacopoeia (JP). Halal and Kosher certifications are routine.
Manufacturing Process
Magnesium Gluconate is produced by neutralisation of gluconic acid with a magnesium source.
Gluconic acid is itself a fermentation product, sourced from Aspergillus niger cultivated on glucose syrup. Submerged aerobic fermentation oxidises the C1 aldehyde of glucose to the carboxylic acid, after which the broth is filtered, concentrated, and sold as a 50 percent aqueous solution.
The acid stream is then neutralised with high-purity magnesium oxide, magnesium hydroxide, or magnesium carbonate at a 1:2 metal-to-acid stoichiometry. The reaction is exothermic and proceeds smoothly to a clear, colourless solution.
The solution is filtered to remove insoluble carryover, decolorised through activated carbon, and crystallised by controlled cooling. The dihydrate crystallises preferentially under most operating conditions.
Crystals are washed, centrifuged, and dried in fluid-bed or vacuum dryers at temperatures below 60 °C to preserve the dihydrate structure. The dried product is milled to specification and packed under controlled humidity.
