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By certification 
Magnesium stearate
Items: SF-018
Products name: Magnesium stearate
Specification: Industrial, food grade; USP-29; BP-2000
CAS No.: 557-04-0
1. Product Introduction
Name: Magnesium stearate
Molecular formula: C36H70MgO4
CAS No.: 557-04-0
EINECS No.:209-150-3
It is white powder with fatty odor, greasy to touch, soluble in hot water and ethanol.
2. Specification
(1) Industrial grade
| Test items | Specification |
| Appearance | (tiny, light and white powder) |
| Assay of Mg | 4.0%-5.0% |
| Loss on Drying | ≤5.0% |
| Free acid | ≤1.0% |
| Melting point | 110-160℃ |
| Particle size | 325 99% (≥99% through 325 mesh) |
| Bulk density | 0.1-0.35g/ml |
(2) Food grade
Operative norm: Enterprise Standard, Q/HLX004-2007
| Test items | Specification |
| Characters | White powder, no impurities, little odour |
| Assay (MgO) | 6.8-8.3% |
| Chloride | ≤0.15% |
| Sulfates | ≤0.6% |
| Heavy metals | ≤0.0015% |
| Arsenic | ≤3mg/kg |
| Loss on drying | ≤4.0% |
(3) Pharmaceutical grade
Operative Norm: USP29 / BP2005
| Test Items | Specification |
| Appearance | Fine, light, white powder |
| Assay (Mg) | 4.0-5.0% |
| Chloride | ≤0.25% |
| Sulfates | ≤0.5% |
| Loss on drying | ≤6.0% |
| Heavy metals | ≤0.001% |
| Arsenic | ≤3mg/kg |
| Stearic acid and palmitic acid | ≥90.0% |
| Stearic aicd | ≥40.0% |
| Organic volatile impurities | conform |
It is widely used in medicine, food, cosmetics and plastic etc, used as emulsifier, dispersant, bond, anti-corrode resistance.
3. Package and Storage:
Packing: 20kgs/bag
Storage: Tightly sealed in a clean, cool, dry area, keep away from strong, direct light.
