Magnesium Carbonate is a food-grade white mineral salt used as an anti-caking agent, acidity regulator, magnesium supplement and drying agent in food, pharmaceutical and cosmetic applications.We supply bulk Magnesium Carbonate sourced from leading China manufacturers, available in powder form for international food processing operations. Our Magnesium Carbonate is widely used in powdered foods, food processing, magnesium dietary supplement, pharmaceutical antacid and bulking agent.
Magnesium Carbonate (MgCO₃) occurs naturally as magnesite and is produced synthetically in light (fluffy) and heavy (dense) grades.
In food it serves as an anti-caking agent for table salt and powdered foods, an acidity regulator, a magnesium supplement (29% Mg), and a processing aid. Also widely used in pharmaceutical antacid formulations and as a drying/bulking agent in cosmetics and sports (gym chalk).
Grades / Types Available: Food Grade, Pharma Grade
| Item | Specification |
|---|---|
| Appearance | White light powder (light grade) or dense powder (heavy grade) |
| Assay (as MgCO₃) | ≥ 40.0% (as MgO) |
| Calcium (as CaO) | ≤ 1.0% |
| Loss on Ignition | 50-60% |
| Acid Insolubles | ≤ 0.05% |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
| Arsenic | ≤ 4 mg/kg |
| Purity (Food Grade) | 99.0% min |
| Moisture/Loss on Drying | 0.5% max |
| pH | 7.0 - 9.0 |
| Lead | 2 ppm max |
Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine Magnesium Carbonate with other food ingredients in one shipment to save on freight.
We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.
Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.
You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.
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Whether you're sourcing bulk ingredients or mix container, contact our team for pricing, free samples, and technical support.