CAS 557-04-0 Magnesium Stearate Powder

Description of Magnesium Stearate powder:

Chemical property

The chemical properties of magnesium stearate powder are relatively stable, and it is insoluble in water but soluble in organic solvents. At room temperature, magnesium stearate powder has no significant chemical reaction with common acids, bases, salts, and other substances, showing good chemical stability.

Physical property

The physical properties of magnesium stearate powder include density, particle size, fluidity, etc. Its specific gravity is about 1.08, and the particles are delicate and easy to disperse. In addition, magnesium stearate powder also has good fluidity and is easy to transport and operate during the production process.

Thermal stability

Magnesium stearate powder has good thermal stability and can be used at high temperatures. Magnesium stearate powder does not undergo significant decomposition or oxidation within the usual temperature range. However, prolonged high-temperature conditions may affect its performance.

Hygroscopicity

Magnesium stearate powder has strong water absorption and can absorb water in the environment. Therefore, attention should be paid to moistureduring storage and use to avoid affecting its performance.

Lubricity

Magnesium stearate powder has excellent lubricity, which can reduce the coefficient of friction, reduce mechanical wear and conflict, and improve mechanical efficiency. This characteristic makes it widely used in lubricants, antiwear agents, and other fields.

Toxicity safety

Magnesium stearate powder is a low-toxic substance with no apparent harm to the human body and the environment. However, prolonged high exposure may cause skin and respiratory irritation, so it is recommended to take appropriate protective measures during production, use, and storage.

Technical Parameters of Magnesium Stearate Pulp:

Application of Magnesium Stearate Powder:  

Food industry

Magnesium stearate powder is widely used in the food industry. For example, magnesium stearate powder can be used as a desiccant in food packaging to absorb water; It can be used as one of the food additives to improve the taste and stability of food; It can also be used as one of the ingredients in drugs and health products to improve the stability and release performance of drugs.

Medical field

Magnesium stearate powder is also widely used in the field of medicine. It can be used as one of the components of pharmaceutical preparations to improve the stability and release performance of drugs. For example, magnesium stearate powder can be used as a coating material for drug particles to protect drugs from the external environment. It can also be used as one of the components of drug intermediates for synthesizing other drugs.

Cosmetics field

Magnesium stearate powder is also widely used in the field of cosmetics. It can be used as one of the additives for beauty and skin care. For example, magnesium stearate powder can be used as an emollient and moisturizer in cosmetics to improve skin smoothness and moisture retention. It can also be used as an anti-corrosive agent and antioxidant in cosmetics to extend the shelf life of cosmetics.

Plastic products field

Magnesium stearate powder is also widely used in the field of plastic products. It can be used as one of the additives to improve the performance and appearance of plastic products. For example, magnesium stearate powder can be used as a lubricant and anti-wear agent for plastic products to reduce friction and wear and improve mechanical efficiency. It can be used as a flame retardant and smoke suppressor for plastic products to improve the fire resistance and environmental protection of plastic products. It can also be used as an antistatic and anti-corrosion agent for plastic products to extend the service life of plastic products.

Rubber products field

Magnesium stearate powder is also widely used in the field of rubber products. It can be used as one of the additives to improve the performance and appearance of rubber products. For example, magnesium stearate powder can be used as a lubricant and anti-wear agent for rubber products to reduce friction and wear and improve mechanical efficiency. It can be used as an antistatic and anti-corrosion agent of rubber products to extend the service life of rubber products. It can also be used as a reinforcing agent and adhesive for rubber products to improve the quality and production efficiency of rubber products.

Other fields

In addition to the above areas, magnesium stearate powder can also be used in some other particular areas. For example, it can be used as one of the additives in coatings to improve the performance and appearance of coatings. It can be used as an antistatic and waterproof agent in paper treatment to improve the quality and durability of paper. It can also be used as a synergist and stabilizer in pesticides to enhance the efficacy and stability of pesticides.

Production Method of Magnesium Stearate Powder: 
Raw material preparation

Raw materials for producing magnesium stearate powder include stearic acid, magnesium hydroxide or magnesium oxide, and other possible additives. Stearic acid can be industrial or food-grade, while magnesium hydroxide or magnesium oxide usually uses commercially available reagent-grade products. Other additives can also be added to improve the performance or appearance of the product as needed.

Reaction process

Stearic acid is mixed with magnesium hydroxide or magnesium oxide in a particular proportion, usually by ball milling or stirring. It is necessary to control the temperature and mixing speed during the mixing process to ensure the raw materials are thoroughly mixed. Add an appropriate amount of water or other solvents to the diverse raw materials to form a uniform solution. The solution is then heated, usually in a water bath or an oil bath. During heating, stearic acid reacts chemically with magnesium hydroxide or magnesium oxide to form a magnesium stearate precipitate.

Filtration and drying

The reaction product is filtered to remove unreacted magnesium hydroxide or magnesium oxide and other impurities. The cake is then dried to remove water and volatile components. Attention should be paid to controlling temperature and humidity during the drying process to prevent deterioration or caking of the product.

Grinding and packing

The dried magnesium stearate powder was ground to make its particle size finer and distribution more uniform. Finally, the ground magnesium stearate powder is packaged for use.

It should be noted that the specific production methods and process parameters may vary according to different manufacturers and product requirements. In the production process, it is necessary to adjust and optimize according to the specific situation and pay attention to the control of raw material quality, reaction conditions, product quality, etc., to ensure that the produced magnesium stearate powder meets the requirements. At the same time, it is also necessary to pay attention to safety issues and environmental protection treatment to ensure the safety and environmental protection of the production process.

In addition, in the production process of magnesium stearate, the following issues may also need to be noted:

Activation treatment of magnesium oxide

In the production process, magnesium oxide may present different physical states (such as crystallinity, amorphous form, etc.), affecting the product's performance. Therefore, magnesium oxide must be activated before production to improve its reactivity. The methods of activation treatment include heating, ball milling, adding catalyst, etc.

Selection and timing of additives

According to the need, some additives can be added during the production process to improve the performance or appearance of the product. For example, antioxidants can be added to enhance the stability of the product; Colorants can be added to change the product's color; Lubricants can be added to improve the fluidity of the product. 

Control of reaction conditions

The reaction conditions influence the production and quality of magnesium stearate. For example, temperature, pressure, time, etc., all affect the rate of reaction and the quality of the product. Therefore, these factors need to be strictly controlled in the production process.

Shipping Magnesium Stearate Pulver:

There are many options for packaging, which all depend on Magnesium Stearate Pulse quantity.
Packing of magnesium stearate powder 20kg/bag.
Magnesium Stearate powder shipping: Could be sent out by express, air, or sea after receipt of payment.

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