A Versatile Compound for Various Applications
Introduction
Magnesium stearate (chemical formula: Mg(C₁₈H₃₅O₂)₂) is a soap-like compound formed by the combination of stearate molecules (the anion of stearic acid) with magnesium ions (Mg²⁺). This white, water-insoluble powder finds widespread use due to its unique properties.Get more news about
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Properties
Insolubility: Magnesium stearate remains insoluble in water, ethanol, and ether. This property makes it suitable for various applications where water resistance is essential.
Softness: The compound’s softness allows it to function as a lubricant and anti-adhesive agent.
Chemical Formula: Mg(C₁₈H₃₅O₂)₂
Molecular Weight: 591.24 g/mol
Melting Point: 200°C
Boiling Point: 359.4°C
Density: 1.028 g/cm³
Applications
Pharmaceutical Industry:
Tablet Production: Magnesium stearate serves as a lubricant and flow enhancer in tablet manufacturing. It ensures smooth tablet compression and improves flow properties.
Coating Material: It can be used as a film-coating material for solid dosage forms.
Granulation: Particularly suitable for oil-based and ointment-based drug formulations.
Cosmetics and Personal Care:
Powder Products: In cosmetics, it enhances adhesion and lubrication in powder-based products.
Skin Feel: When applied to the skin, it imparts a smooth, silky feel.
Food Industry:
Although not directly consumed, magnesium stearate is used in food processing as an anti-caking agent and to improve flow properties.
Industrial Applications:
Paints and Coatings: It acts as a transparent matting agent.
Plastics and Rubber: Used as a lubricant and mold release agent.
Textile Industry: Enhances fabric softness.
Safety Considerations
LD50 (oral, rat): Approximately 2500 mg/kg1.
Conclusion
Magnesium stearate, with its multifaceted applications, plays an essential role across various industries. Its unique combination of properties makes it indispensable for formulators, manufacturers, and consumers alike.
