CAS 557-04-0 Magnesium Stearate Powder

Overview of Magnesium Stearate Powder

Magnesium stearate powder, a white or slightly shallow yellow powder, is a salt of stearic acid and magnesium. It is widely used in various industries due to its unique properties. This powder is produced through a chemical reaction between stearic acid and magnesium oxide. Its application range spans from pharmaceuticals and nutraceuticals to personal care and industrial lubricants.

(CAS 557-04-0 Magnesium Stearate Powder)

Characteristics of Magnesium Stearate Powder

Non-toxic and Non-irritant: Magnesium stearate is non-toxic and non-irritant to skin and eyes, making it safe for use in personal care products.
Excellent Lubricating Properties: It exhibits excellent lubricating properties, which are beneficial in pharmaceutical formulations, ensuring smooth tablet ejection and reducing wear in industrial applications.
High Thermal Stability: Magnesium stearate powder maintains its home also at raised temperatures, making specific stability in processed products.
Water-insoluble: Its water-insoluble nature enables it to be used as a release agent in molding procedures, preventing bonds to molds.
Good Chemical Stability: It remains chemically stable under normal conditions, resisting degradation and maintaining its efficacy over time.

Parameter table of Magnesium Stearate Powder

Magnesium Stearate Powder Properties
Other Names	N/A
CAS No.	557-04-0
Compound Formula	Mg[CH3(CH2)16COO]2
Molecular Weight	N/A
Appearance	White powder
Melting Point	110-160℃
Boiling Point	N/A
Density	N/A
Solubility in H2O	No
Exact Mass	N/A
Magnesium Stearate Powder Health & Safety Information
Signal Word	N/A
Hazard Statements	N/A
Hazard Codes	N/A
Risk Codes	N/A
Safety Statements	N/A
Transport Information	N/A

Application of Magnesium Stearate Powder

Pharmaceutical Market: Magnesium stearate is widely made use of in tablets and capsules as a lubricant and glidant to improve their circulation homes and ease their production process.

Personal Care Products: It discovers application in cosmetics and individual treatment products such as creams, creams, and powders, boosting their texture and spreadability.

Food Industry: Magnesium stearate is utilized as an anti-caking representative in foodstuff to prevent clumping and keep their flowability.

 Pharmaceutical Industry

 Personal Care Products

 Food Industry

Rubber and Plastics Industry: It acts as a processing aid in rubber and plastic manufacturing, improving workability and reducing friction during processing.

 Rubber and Plastics Industry

Lubricants and Greases: Magnesium stearate powder is also used in lubricants and greases for its lubricating properties, enhancing the performance of mechanical components.

 Lubricants and Greases

Production Method of Magnesium Stearate Powder

Direct Reaction Method

First, get stearic acid and magnesium oxide or magnesium hydroxide. Mix stearic acid with an excess of magnesium oxide or hydroxide in a reaction vessel. Heat the mixture, usually around 80 – 100°C. Stir it well during heating. The stearic acid reacts with magnesium compound. The reaction formula is something like 2C₁₇H₃₅COOH + MgO → (C₁₇H₃₅COO)₂Mg + H₂O. After the reaction, cool the product and grind it into powder.

Saponification Method

Take stearic acid and react it with an alkali like sodium hydroxide to make sodium stearate. Mix stearic acid with sodium hydroxide solution. Heat and stir for saponification. Then, add a magnesium salt solution, such as magnesium chloride. Sodium stearate reacts with magnesium chloride. The reaction is 2C₁₇H₃₅COONa + MgCl₂ → (C₁₇H₃₅COO)₂Mg + 2NaCl. Filter the resulting precipitate, wash it, and dry it. Finally, grind the dried product to get magnesium stearate powder.

 

Storage Condition of Magnesium Stearate Powder

Use Sealed Containers

Put magnesium stearate powder in tightly closed plastic bags or containers. This keeps out air and moisture.

Pick a Dry and Cool Place

Store it in a dry area. Humidity should be low. The right temperature is around 15 – 25°C.

Keep Away from Heat and Sunlight

Don’t store near heat sources like radiators. Also, stay away from direct sunlight. Heat and sunlight can change the powder.

Separate from Reactive Substances

Don’t let it touch acids, bases, or strong oxidizers. These can react with the powder and spoil it.

Company Profile

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Payment Term

L/C, T/T, Western Union, Paypal, Credit Card etc.

 Shipment Term

By sea, by air, by express, as customers request.

5 FAQs of Magnesium Stearate Powder

Q1:

What is the primary use of magnesium stearate powder?

Re: The primary use of magnesium stearate powder is in the pharmaceutical industry, where it is employed as a lubricant and glidant in tablet and capsule manufacturing to enhance their flow properties and ease their production process.

Q2:

Is magnesium stearate powder safe for human consumption?

Re: Yes, magnesium stearate powder is generally considered safe for human consumption. It is widely used in food products as an anti-caking agent to prevent clumping and maintain flowability. However, excessive intake may cause gastrointestinal discomfort in some individuals.

Q3:

How does magnesium stearate work in personal care products?

Re: In personal care products, magnesium stearate works by improving the texture and spreadability of lotions, creams, and powders. Its lubricating properties help to create a smooth and even application on the skin, enhancing the user experience.

Q4:

Is magnesium stearate powder water-soluble?

Re: No, magnesium stearate powder is water-insoluble. Its water-insoluble nature allows it to be used as a release agent in molding processes, preventing adhesion to molds. This property also makes it suitable for use in products where water resistance is desired.

Q5:

What are the storage requirements for magnesium stearate powder?

Re: Magnesium stearate powder should be stored in a cool, dry, and well-ventilated area, protected from moisture and direct sunlight. It should be kept in airtight containers to maintain its quality and effectiveness. Avoid exposure to temperatures above 30°C and humidity to prevent degradation.