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Magnesium Stearate Pharma Grade

CAS：557-04-0
Formula：

[CH₃(CH₂)₁₆COO]₂Mg or Mg(C₁₇H₃₄COO)₂

DESCRIPTION

Product name:  Magnesium Stearate

Other names:　Magnesium octadecanoate，Stearate Magnesium

Cas No.:  557-04-0

Chemical formula: [CH₃(CH₂)₁₆COO]₂Mg or Mg(C₁₇H₃₄COO)₂

Other names: Octadecanoic Acid, Stearic Acid Magnesium Salt

Ingredients: Pharma grade Magnesium Stearate is a mixture of magnesium salts of different fatty acids consisting mainly of stearic acid [(C17H35COO)2Mg] and palmitic acid [(C15H31COO)2 Mg] with minor proportions of other fatty acids. The fatty acid fraction contains not less than 40.0% of stearic acid and the sum of stearic acid and palmitic acid is not less than 90.0%.

Characters: pharm grade Magnesium Stearate is a white, very fine light powder, greasy to the touch, practically insoluble in water and in ethanol.

 

SPECIFICATION

Test items	Unit	Specification
Fatty acid composition	/	Stearic acid 40%min Sum of stearic acid and palmitic acid 90%min
Assay	%	Mg: 4.0~5.0
Chlorides	%	0.1 max
Sulphates	%	0.6 max
Loss on drying	%	5.0 max
Iron salt	%	0.01 max
Heavy metals	ppm	10 max
Acidity or alkalinity	/	+
Cadmium	ppm	3 max
Lead	ppm	10 max
Nickel	ppm	5 max
Microbial limit	/	Aerobic microbial count 1000cfu/g max Total yeasts count 100cfu/g max
Particle size(Passing 45um)	%	99.0 min
Quality standard	ChP2015, BP2011, USP34/NF29

 

 

APPLICATION

Medications. Our pharma grade magnesium stearate is suggested as Excipient and Lubricant in pharmaceutical industry. Its main job is to keep the ingredients in a capsule from sticking together. It also forms a barrier between the medicines and the machines that make them. The powder improves the consistency and quality of the medication capsules.

 

Cosmetics. In the cosmetic world, our magnesium stearate is a helpful ingredient for many things. It acts as a bulking agent, an anti-caking agent, a colorant, and more.

 

Safety

Magnesium stearate is generally considered safe for human consumption at levels below 2500 mg/kg per day[12] and is classified in the United States as generally recognized as safe (GRAS). So the recommended dosage is 0.25%~5.0%.

 

STORAGE

Storage: Magnesium Stearate should be stored in closed package and avoid from moisture and strong sun light.

 

PACKAGE

Package: Magnesium Stearate package can be customized according to customers’ requirements. If no special instruction, it is packed in 10kg plastic bag or drum.

 

SHELF LIFE

3 years from the date of manufacturing. 

 

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