What is Magnesium Stearate?
Magnesium stearate, with the chemical formula Mg(C18H35O2)2, is a salt compound formed from stearic acid and magnesium ions. It has a white to slightly yellow crystalline or powdered form and is commonly used as an adjuvant in pharmaceuticals and foods. Magnesium stearate, with a molecular weight of 591.24, is an organic compound in the form of a fine, white, non-grit powder that has a slippery feel when in contact with the skin. It is insoluble in water, ethanol or ether and is mainly used as a lubricant, anti-adhesive and flow aid. It is especially suitable for the granulation of oils and extracts, and the granules have good fluidity and compressibility. It is used as a flow aid in direct tablet pressing. It can also be used as a filtering aid, clarifying agent, dropping foam agent, and suspending aid and thickening agent for liquid preparation.
Magnesium Stearate
TRUNNANO is a trusted global Magnesium Stearate Powder supplier. We have different kinds of magnesium stearate powder.
Medicinal Pharmaceutical grade magnesium stearate, food grade magnesium stearate, cosmetic grade magnesium stearate, industrial grade magnesium stearate.
Feel free to send an inquiry to get the latest Magnesium Stearate Powder price if you would like to buy Magnesium Stearate Powder in bulk.
Characteristics of Magnesium Stearate
Magnesium stearate, a common adjuvant, has a variety of roles and functional staples in the pharmaceutical and food industries. Its lubricating, anti-adhesive, stabilizing and dispersing properties make it an essential additive in various fields. However, care should be taken to use magnesium stearate in the proper ratios and appropriate dosages to ensure safe and practical application.
Product Name | Grade | Melting Point | MgO Content | Particle Size | Appearance |
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Magnesium Stearate Powder | Pharmaceutical grade, Food grade, Cosmetic grade, Industrial grade |
110-160℃ | 6.8-8.3% | 325 mesh | white powder |
Application of Magnesium Stearate
Magnesium stearate has a variety of roles and is widely used in the pharmaceutical and food industries. The following are the main roles of magnesium stearate:
Lubricant: magnesium stearate is a new type of pharmaceutical excipient, which can be used as a film-forming coating material for solid preparations, a thickening agent for colloidal liquid preparations, a suspending agent and so on. It has good lubricating properties, which can reduce the adhesion and sticking of tablets, capsules or powders in the process of preparation and packaging and ensure the fluidity and stability of the products. It is used in cosmetics for powder products to enhance adhesion and lubrication.
Anti-adhesion agent: Magnesium Stearate reduces the adhesion between pharmaceutical or food ingredients and prevents solid particles from agglomerating and sticking to the surface of the container.
Stabilizer: Magnesium Stearate can improve the stability of drugs or foods, reduce oxidation and decomposition reactions, and extend the shelf life of products.
Dispersing agent: magnesium stearate can evenly disperse solid ingredients in liquid, improving the homogeneity and stability of the mixture.
Release agent: Magnesium Stearate can be used as a release agent in pharmaceutical processes to facilitate the separation of drugs from molds or containers and maintain the integrity of the drug.
Besides, magnesium stearate is used as a heat stabilizer for polyvinyl chloride, as well as raw material for cosmetic flour, emollient ointment and pharmaceutical tablets (excipient, lubricant); it is used for lubricating and bright and transparent school wood powder; it is used as an evident leveling agent for paint industry, and so on.
Functions and Indications of Magnesium Stearate
Magnesium stearate has a wide range of applications in the field of medicine and food, mainly used in the following functions:
Pharmaceutical preparations: In pharmaceutical preparations, magnesium stearate is often used as an auxiliary agent to improve drug fluidity, stability and solubility. It is commonly used in tablets, capsules, and powder preparations and can reduce the irritation of drugs to the gastrointestinal tract.
Food Additive: Magnesium Stearate is widely used as a food additive with lubricating, anti-adhesion and dispersing properties. It is commonly used in chocolate, candy, chewing gum, oral liquid, fruit juice and other foods to improve the taste and stability of products.
Cosmetics: Magnesium stearate can be used as a dispersant, stabilizer, and lubricant. It can improve the texture, prolong the shelf life of cosmetics, and increase the smoothness and silky feeling of the products.
Plastics and rubber industry: Magnesium stearate can be used as an additive in the plastics and rubber industry to improve product processing performance and lubricity. It is commonly used to prepare plastic products, rubber products and coatings.
Medical Devices: Magnesium Stearate can be used as a release agent for medical devices to help the devices to be detached from the mold. It is commonly used to prepare medical tape, catheters, syringes and other medical devices.
Packing & Shipping of Magnesium Stearate Powder:
We have many different kinds of packing which depend on Magnesium Stearate Powder quantity.
Magnesium Stearate Powder packing: 20kg/bag, then put on pallet.
Magnesium Stearate Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc. If you are looking for high-quality magnesium stearate powder with different uses, please feel free to contact us and send an inquiry. ([email protected])
FAQs of Magnesium Stearate Powder:
Q: What is the mechanism of action of magnesium stearate in pharmaceutical preparations?
A: In pharmaceutical preparations, magnesium stearate mainly plays the following roles: Lubrication: By covering the surface of the powder particles to form a thin film, it reduces the friction between the particles, making it easier to take out the finished product from the mold without damaging it during the tabletting process. Anti-adhesion effect: prevent the adhesion phenomenon between the powder and the contact surface of the equipment (e.g. punch, inner wall of the mold) to ensure the continuity of production and consistency of product quality. Flow-assisting effect: Improve the fluidity of the material, make the mixing more uniform, and help to get better filling effect and compression characteristics. In addition, due to its weak alkalinity, it can also neutralize certain acidic pharmaceutical ingredients, avoiding corrosion of production equipment or affecting the stability of the final product.
Q: What safety precautions should I take when using magnesium stearate?
A: Although magnesium stearate itself is a low-toxicity substance, there are still some safety precautions that need to be observed during its use: Inhalation Risk: When handling the product in dry powder form, wear appropriate respiratory protective equipment, such as a dust mask, to prevent inhalation of minute particles that may cause respiratory irritation. Skin contact: Prolonged direct contact may cause dryness or minor skin irritation, gloves and other necessary personal protective equipment are recommended. EYE PROTECTION: In case of inadvertent eye contact, flush immediately with plenty of water and seek medical help. STORAGE CONDITIONS: Store in a dry, cool place away from sources of ignition and strong oxidizers to prevent accidents. Regulatory compliance: Ensure proper use and disposal of this chemical in accordance with local laws and regulations, especially in food and drug related areas.
Q: What is the environmental impact of magnesium stearate? Is there any ecological risk?
A: There is relatively limited research on the specific environmental effects of magnesium stearate, but some speculations can be made based on its chemical properties: Biodegradability: Theoretically, compounds containing fatty acid salts are more readily broken down by microorganisms, so if released into the natural environment, they may be degraded more quickly, reducing the likelihood of long-term residues. Ecotoxicity: Magnesium stearate is generally considered harmless to higher plants and animals, but excessive concentrations may have some toxic effects on aquatic organisms, especially phytoplankton. WASTEWATER TREATMENT: Effective measures should be taken to minimize the discharge of wastewater containing magnesium stearate during industrial wastewater treatment, such as physicochemical removal of excess suspended solids or biological treatment techniques to convert the magnesium stearate to a more stable form. In order to minimize potential environmental risks, it is important to use and manage magnesium stearate appropriately, and to pay attention to trends in environmental protection policies and technologies.
Q: How do I select the right type and supplier of magnesium stearate for a particular application?
A: Selecting the most suitable magnesium stearate type and reliable supplier for your project needs is a critical step to ensure product quality and cost-effectiveness: Define the requirements: First determine the requirements of the specific application scenario, such as the desired particle size distribution, purity level, and the need to comply with specific standards (e.g., USP, BP, EP, etc.). Comparison of technical parameters: Compare the technical specifications of different models, such as particle size, specific surface area, moisture content, etc., and select the product that best meets the requirements of the project. Sample testing: Request samples from potential suppliers for laboratory testing or small-scale trial production to assess whether their actual performance meets expectations. Supplier reputation: Examine the supplier's historical performance, customer evaluation and technical support level, and prioritize those companies with rich experience and good reputation. Price and supply stability: comprehensively consider the market price of the product, volume discount policy and the reliability of long-term supply, to find the most cost-effective partner. Environmental certification: Ensure that the selected products comply with local environmental standards and have the appropriate certification documents to cope with the increasingly stringent environmental protection regulations.
Magnesium Stearate Powder Properties |
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Other Names | N/A | |
CAS No. | 557-04-0 | |
Compound Formula | C36H70MgO4 | |
Molecular Weight | N/A | |
Appearance | White powder | |
Melting Point | 200℃ | |
Boiling Point | 359.4℃ | |
Density | 1.028g/cm3 | |
Solubility in H2O | No | |
Exact Mass | N/A | |
Magnesium Stearate Powder Health & Safety Information |
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Signal Word | N/A | |
Hazard Statements | N/A | |
Hazard Codes | N/A | |
Risk Codes | N/A | |
Safety Statements | N/A | |
Transport Information |
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