The Chemical Composition and Properties of Magnesium Stearate
NINGBO INNO PHARMCHEM CO.,LTD. provides a detailed overview of the chemical composition and physical properties of Magnesium Stearate, a compound essential to many manufacturing processes. Chemically, Magnesium Stearate is the magnesium salt of stearic acid, a saturated fatty acid. Its chemical formula is typically represented as Mg(C18H35O2)2. The compound is essentially a mixture of magnesium stearate and magnesium palmitate, with variable proportions depending on the manufacturing process and source of the fatty acids, which can be derived from either animal fats or vegetable oils.
Physically, Magnesium Stearate presents as a fine, white, powdery substance. It has a characteristic faint odor and a smooth, unctuous feel, often described as slippery to the touch. It is practically insoluble in water, alcohol, and ether, but it can decompose when exposed to strong acids, yielding stearic acid and a magnesium salt. Its melting point typically falls within a range, often cited around 130-150°C, though specific values can vary. The particle size, specific surface area, and morphology of Magnesium Stearate can influence its performance, making consistent manufacturing critical.
The hydrophobic nature of Magnesium Stearate is a key property that dictates many of its applications. This characteristic is attributed to the long hydrocarbon chains of the stearate and palmitate molecules. This hydrophobicity is fundamental to its function as a lubricant and anti-caking agent, as it allows the material to resist moisture and reduce adhesion between particles or surfaces. Understanding the chemical and physical properties of magnesium stearate is vital for its effective application.
NINGBO INNO PHARMCHEM CO.,LTD. emphasizes the importance of sourcing high-purity Magnesium Stearate with controlled physical characteristics to ensure consistent performance in various applications. The company's commitment to quality control means that the Magnesium Stearate supplied meets stringent specifications for chemical purity and physical attributes. This ensures that manufacturers can rely on our product for predictable and effective results, whether in pharmaceutical tablet formulations, cosmetic products, or food processing. The detailed chemical composition and properties of magnesium stearate underline its utility and the precision required in its production and application.
Perspectives & Insights
Chem Catalyst Pro
“It is practically insoluble in water, alcohol, and ether, but it can decompose when exposed to strong acids, yielding stearic acid and a magnesium salt.”
Agile Thinker 7
“Its melting point typically falls within a range, often cited around 130-150°C, though specific values can vary.”
Logic Spark 24
“The particle size, specific surface area, and morphology of Magnesium Stearate can influence its performance, making consistent manufacturing critical.”