Magnesium Stearate

Our company is also manufacturing Magnesium Stearate for pharmaceutical as well as industrial customers. Magnesium Stearate is used as a lubricating agent in tablet manufacturing, as a drier in paints and varnishes, as a flatting agent, as a stabilizer and lubricant for plastics, emulsifying agent in cosmetics, as an ant caking agent in foods.

• Description : A white very fine, light white powder, odourless or with a very faint odour of stearic acid; unctuous and free from grittiness Greasy To Touch.
• Solubility : Practically Insoluble In Water And Anhydrous Ethanol
• Freezing Point : Minimum 53°C
• Acid Value of Fatty Acid : 195 to 210
• Fatty Acid Composition : Retention Time of Test & Reference solution in Chromagram should be same.
• Magnesium Test : Gives reaction of Magnesium
• Chromatogram Test : Retention time of test solution corresponds to standard solution for relative content of Stearic and Palmitic acid.
• Appearance of Solution : Not more intensely colored than reference sol.
• Appearance of Solution of Fatty Acid : Not more intensely colored than reference sol.
• Acidity or Alkalinity : Maximum 0.05 ml. of 0.1N HCl or NaOH
• Chloride : Maximum 250
• Sulphate : Maximum 0.6%
• Cadmium As CD : Maximum 3 ppm
• Lead : Maximum 10 ppm
• Nickel : Maximum 5 ppm
• Loss on Drying : Maximum 6.0%
• Free Stearic Acid : Maximum 3%
• Zinc Stearate : No violet ppts. produced
• Heavy Metals : Maximum 20 ppm
• ASSAY as Mg : 4.0% to 5.0%
• ASSAY as Fatty Acid : Minimum 40% Stearic Acid
• Sum of Stearic acid & Palmetic acid : Minimum 90%
• Microbiology :
  1) TAMC - Maximum 1000 CFU/G
  2) TYMC - Maximum100 CFU/G
  3) E.Coli. - Absence
  4) Salmonella - Absence