Magnesium Stearate is a food-grade magnesium salt of stearic acid, a white, very fine, light powder with a faint fatty odour.We supply bulk Magnesium Stearate sourced from leading China manufacturers, available in powder form for food and beverage manufacturers worldwide. Our Magnesium Stearate is widely used in confectionery, tablet and capsule manufacturing, hard candy, chewing gum and tablets, dry seasoning mixes and instant beverages and pressed-powder makeup.
Magnesium Stearate (E470b) is produced by reaction of stearic acid with magnesium hydroxide or magnesium chloride with sodium stearate.
It is insoluble in water and most solvents, melts at 117–150 °C, and has hydrophobic character that prevents ingredient adhesion to machinery. Food-grade Magnesium Stearate meets USP, FCC and EP specifications and is GRAS under FDA 21 CFR.
Grades / Types Available: Food Grade, Pharmaceutical Grade, Cosmetic Grade, Nontoxic Plastic Additive Grade
| Item | Specification |
|---|---|
| Appearance | White very fine powder |
| Assay (as Mg salt) | ≥90.0% |
| Magnesium Content | 4.0–5.0% |
| Free Fatty Acid | ≤3.0% |
| Free Alkali (as NaOH) | ≤0.1% |
| Stearic+Palmitic Acid | ≥90.0% |
| Loss on Drying | ≤6.0% |
| Lead | ≤2 mg/kg |
| Arsenic | ≤1.5 mg/kg |
| Heavy Metals | ≤10 mg/kg |
| Particle Size | D50 ≤25 μm |
| Purity (Food Grade) | ≥ 98% |
| Moisture/Loss on Drying | ≤ 5% |
| pH | 6.0 - 8.0 |
| Particle Size/Mesh | 100 - 200 mesh |
| Ash | ≤ 0.5% |
| Total Plate Count | ≤ 1000 cfu/g |
| Yeast & Mold | ≤ 100 cfu/g |
Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine Magnesium Stearate 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.