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.