Magnesium Stearate

Physical properties :

Specification :

Product Name	Magnesium Stearate
Appearance	white, water-insoluble powder.
Assay	4-5% on dried basis
Loss on Drying	Max 6%
Specific Surface area (BP)	3M2/grn-14M2 grn
Particle Size	99% Particle passes from 325 mesh
Thermogravityrnetry (BP)	BP 2.2.34
Heavy Metal as Lead (%)	Max 0.002
Organic Volatile impurities (ppm)	Passed
Melting Point °C	130 - 150
Freezing Point (°C)	54 Min
Assay as MgO (%)	6.8 - 8.3
Arsenic as AS2o3 (%)	0.0002 max
Free Fatty Acid (%)	1.0 Max.
Methyl Stearate (%)	40 min
Pseudomonas aeruginosa	Negative
Staphylococcus aureus	Negative
Clarity of Fatty Acid	Clear
Stearic Acid	NLT 40%
Lead (BP)	PPM Max 10
Nickel (BP)	PPM Max 5.0
Cadmium (BP)	PPM Max 3.0
Chloride (USP/BP/EP)	Max 0.1%
Sulphate (USP/BP)	Max 1%
Packing	25 kgs bag
Shelf Life	5 years

Properties :

It is used as a release agent and as a component or lubricant in the production of pharmaceuticals and cosmetics.
Magnesium stearate is often used as an anti-adherent in the manufacture of medical tablets, capsules and powders.
Magnesium stearate can also be used efficiently in dry coating processes.
In the production of pressed candies, magnesium stearate serves as a release agent. It is also used to bind sugar in hard candies such as mints.
Magnesium stearate is a common ingredient in baby formulas.
In the EU and EFTA it is listed as food additive E470b.

Packing :