Magnesium stearate
Magnesium stearate is a high-purity pharmaceutical lubricant and flow agent used to prevent ingredients from sticking to manufacturing equipment during tablet and capsule production.
Description
Magnesium stearate is a fine, white, and greasy-to-the-touch powder commonly used as a release agent in the production of solid dosage forms. Zyntex provides pharmaceutical-grade Magnesium stearate (CAS 557-04-0), synthesized through the reaction of sodium stearate with magnesium salts or by the fatty acid method. It acts as a primary agent in ensuring the uniformity of pharmaceutical blends. In addition, its hydrophobic properties make it an excellent anti-adherent for high-speed tableting presses. Therefore, manufacturers specify Magnesium stearate from Zyntex to minimize production downtime and maximize the quality of finished medicinal products.
The Critical Role of Magnesium stearate in Tableting
Maximum flowability is essential for achieving precise dosage weight in every tablet. Magnesium stearate effectively reduces the friction between the granulate and the die walls during the ejection phase of the compression process. This lubrication is vital when processing dense powders. For instance, it is the most widely used lubricant for formulating complex APIs like Sulfadiazine, ensuring the final tablet maintains structural integrity without capping. Consequently, it facilitates a smoother manufacturing cycle. As a result, Zyntex ensures our Magnesium stearate has a consistent particle size distribution for optimal blending and coverage.
Moreover, the utility of Magnesium stearate extends beyond basic lubrication; it also serves as a film-forming agent in certain coating processes. It is often used in conjunction with solubilizers like N-Methylglucamine to balance the hydrophobic and hydrophilic needs of a formulation. At the same time, it is extensively used in the cosmetics industry to improve the texture and water-resistance of pressed powders and creams. In short, our product serves as a dependable “manufacturing lubricant” for various high-precision industries. Recently, vegetable-derived Magnesium stearate has gained significant traction in the vegan supplement market due to its clean-label profile.
Key Applications and Benefits
This high-performance excipient is indispensable in these four specialized sectors:
💊 Pharmaceutical Tableting
It acts as a primary active for lubrication. Thus, it provides consistent results for preventing punch sticking and die-wall friction.
🧪 Nutraceuticals
It serves as a key tool for capsule filling. Consequently, Magnesium stearate ensures the powder flows evenly into gelatin or HPMC shells.
💄 Cosmetic Formulations
It works as a texture enhancer and opacifier. Undoubtedly, it is essential for the smooth application of eyeshadows and blushes.
🏭 Industrial Release
It acts as a primary active in plastic and rubber processing. Specifically, it aids in the easy removal of molded parts from templates.
Technical Specifications
| Parameter | Standard Value |
|---|---|
| Product Name | Magnesium stearate |
| Magnesium Content | 4.0% – 5.0% |
| Loss on Drying | ≤ 6.0% |
| CAS Number | 557-04-0 |
⚠️ Usage Note: Magnesium stearate is hydrophobic; over-blending can lead to reduced tablet hardness and prolonged disintegration times. Therefore, lubrication time should be strictly controlled. Store in a cool, dry place to prevent moisture absorption.
