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Magnesium Stearate, Lab Grade

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Article code
MASTGL
CAS
557-04-0
Grade
Lab Grade
Purity
6.8 - 8.3% (MgO)
Category
Other laboratory materials

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Properties

Article / SKU
MASTGL
CAS
557-04-0
Synonyms
Magnesium octadecanoate, Magnesium distearate, Dibasic magnesium stearate, Octadecanoic acid-magnesium salt
Assay
6.8 - 8.3% (MgO)
PubChem ID
11177
Grade
Lab Grade
Melting point
130 - 140 °C / 266 - 284 °F
Solubility
Insoluble in Water
Molecular formula
Mg(C 18 H 35 O 2 )2
Molecular weight
591.2 g/mol
Autoship Available
Yes
Chemical name
Magnesium stearate
Heavy metals
</= 0.002%
Lead (Pb)
</= 0.001%
Loss on drying
</= 4.0%
Pillar
Essential

Packaging options — size and article

SizeArticle / SKU
1lbMASTGL-1LB
500gMASTGL-500G
1kgMASTGL-1KG
2.5kgMASTGL-2.5KG
12.5kgMASTGL-12.5KG
50lbMASTGL-50LB
25kgMASTGL-25KG

Packaging options

  • 1lb
  • 500g
  • 1kg
  • 2.5kg
  • 12.5kg
  • 50lb
  • 25kg

Details

Magnesium Stearate, Lab Grade

Magnesium Stearate, also known as Magnesium Distearate, Magnesium Octadecenoate, and Octadecanoic Acid-Magnesium Salt, possesses the chemical formula C 36 H 70 MgO 4 or Mg(C 18 H 35 O 2 ) 2 . It appears as a fine, bulky, white odorless powder and is practically insoluble in water, ethanol. It can be produced on a lab scale by the reaction of sodium stearate with magnesium sulfate. When heated to decomposition it emits acrid smoke and toxic fumes. Chemically pure or Laboratory reagents are the two terms often used to describe Lab Grade chemicals. Lab Grade chemicals do not meet any accepted quality or purity requirements such as the ACS Grade, the USP Grade, and the FCC Grade, despite their acceptable purity.

Magnesium Stearate, also known as Magnesium Distearate, Magnesium Octadecenoate, and Octadecanoic Acid-Magnesium Salt, possesses the chemical formula C36H70MgO4 or Mg(C18H35O2)2. It appears as a fine, bulky, white odorless powder and is practically insoluble in water, ethanol. It can be produced on a lab scale by the reaction of sodium stearate with magnesium sulfate. When heated to decomposition it emits acrid smoke and toxic fumes.

Chemically pure or Laboratory reagents are the two terms often used to describe Lab Grade chemicals. Lab Grade chemicals do not meet any accepted quality or purity requirements such as the ACS Grade, the USP Grade, and the FCC Grade, despite their acceptable purity.

Common Uses and Applications

Flow Agent and Stabilizer in Powdered Products

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