Roquette Magnesium Stearate
Medium Specific Surface Area
Product Name | Roquette Magnesium Stearate |
Generic Name | Magnesium Stearate |
Physico-chemical properties | |
Compliance | EP/USP-NF/JP ; GRAS |
Synonyms | Dibasic magnesium stearate |
CAS Number | 557-04-0 |
Chemical Structure |
![]() |
Physical Form or Appearence | Very fine, light-white powder |
Application | Roquette Magnesium Stearate is a lubricant for tablets and capsules with a medium specific surface area. It's used in the range of 0.25% to 5%. |
Water content (LOD) |
Water Content (LOD) Maximum: 6 % |
Source | Plant-based |
Morphology |
![]() |
Average mean particle diameter | 8 µm |
Particle Size Distribution by Laser Diffraction |
dv10: 1.4 µm dv50: 7.8 µm dv90: 27.5 µm |
Solubility | Insoluble in alcohol, water and ether |
Tablet hardness |
![]() |
Ejection force |
![]() |
Experimental Conditions for Compression Behavior |
Tablet Press: STYLCAM 200R Production Speed: 10, 25 and 40 tablets/min (respective linear punch velocity: 38, 96 and 152 mm/s ; respective simulated rotary press speed: 60000, 150000 and 250000 tablets/hour) Tooling: Diameter 10 mm flat Formula: 49.8% MICROCEL® 200 SD / 49.8% PEARLITOL® 200 SD / 0.4% Roquette Magnesium Stearate Mixing Time: 5 minutes Tablet Mass: 350 mg |
Powder Characteristics |
Powder Flowability (according to Ph.Eur. 2.9.16, 10mm outflow opening): Not free-flowing Bulk Density: 0.23 g/cm3 Tapped Density: 0.33 g/cm3 True Density: 1.092 g/cm3 Specific surface area: 8 m2/g Maximum Specific surface area: 10 m2/g Minimum Specific surface area: 5 m2/g |
Â
Disclaimer
These typical values are provided for information only and we believe them to be reliable. Methods available upon request.