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Magnesium Stearate

Magnesium Stearate
Magnesium Stearate
CategoriesPharmaceutical Excipients&APIS
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Update Time2020-06-05
Detail Information

Magnesium Stearate

 CAS: 557-04-0

 

        Structure:

                         

 Specifications: Conforms to standard USP27 and BP2000.

TextUSP31BP2005
Assay%4.0-5.0(Mg)4.5-5.0(Mg)
Chloride%≤0.1≤0.1(0.25%)
Sulfate%≤1.0≤0.5
Loss on drying%≤6.0≤6.0
Iron% ≤0.01
Lead ppm≤10≤10
Cadmium ≤3ppm
Acid or Alkalinityconformsconforms
Stearic acid and plam  
acid relative density%≥90≥90
Total assay(stearic acid)%≥40≥40
Organic Volatile Impuritiesconformsconforms

 Physical properties:

Character: White, tiny and smooth, fluffy powder;insoluble in water, alcohol, ether; slightly dissoluble in hot alcohol and benzene, and can be decomposed bydilute acid; hard to flow, Viscous powders.
Particle size: 100 percent through 80mesh sieve.

 USE: The product is mainly used as troche and the lubricant of the capsule, or anti-viscous agent, the concentration of which is commonly 0.25-2.0 percent.Because of its hydrophobicity, it can delay the effusing rate of the solid preparation medicament.Thus its use concentrations low by all means, and it should be avoided to be used with medicaments which is not match to the alkaline substance.

 Package: It is packed in fiber bag and lining with polyethylene film bag Net Weight 20KG per bag.

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