Magnesium Stearate - Applications in Plastics Industry

Metallic StearatesMagnesium Stearate

Physicochemical Properties

Magnesium stearate appears as a white powder, non-toxic, insoluble in water or ethanol, but soluble in hot organic solvents and acids. EC No.: 209-150-3

CAS No.

557-04-0

Molecular Formula

Mg(C17H35COO)2

Molecular Weight

590

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Magnesium Stearate

Product Description

Magnesium stearate is a versatile oleochemical compound appearing as a white powder and widely used in industry. At CHNV, magnesium stearate is made from plant-based stearic acid and magnesium salt, non-toxic, insoluble in water or ethanol. However, it is soluble in hot organic solvents and acids. Owing to its unique properties, it is widely regarded as safe and is extensively used across various industries.

Applications

Stabilizer for PVC products

In addition to its lubricating function, magnesium stearate also acts as a heat stabilizer in the polyvinyl chloride (PVC) industry. During PVC processing, magnesium stearate provides thermal stability from the fuse to the imaging equipment, preventing volatilization and degradation of the material.

Dispersant and lubricant for polymer functional materials

Magnesium stearate has two major functions in the polymer industry: dispersant and lubricant. It helps disperse materials better. It reduces friction between the machine and the material. This improves stability and enhances the quality and functionality of polymer products.

Functional additive for cosmetics and pharmaceutical tablets

As a lubricant and anti-blocking agent, magnesium stearate is commonly used by manufacturers in tablet production. It prevents the powder from sticking together when the manufacturer compresses the capsules. It also improves the appearance of tablets and increases production efficiency. In cosmetic production, magnesium stearate is widely used as a thickener, lubricant and anti-caking agent. You can find it in pressed powders, eyeshadows, blushes and other products. It enhances the texture of cosmetics, making the product softer, smoother and easier to apply. It also improves the stability and overall feel of the product.

General

Magnesium stearate is an indispensable ingredient in numerous industrial applications such as polymers, polyvinyl chloride (PVC), pencil leads, tablets and cosmetics. It offers chemical stability and can be used as a lubricant, anti-blocking agent, mold release agent and heat stabilizer. Therefore, it is crucial in many industries.

Specifications

Product Name	Magnesium Stearate	Magnesium Stearate	Magnesium Stearate	Magnesium Stearate	Magnesium Stearate	Magnesium Stearate	Magnesium Stearate	Magnesium Stearate
Model	CM700	CM701	CM702	CM700S	CM701S	CM702S	CM720	SCM250
Appearance	White Powder	White Powder	White Powder	White Powder	White Powder	White Powder	White Powder	White Powder
Metal Content Mg (%)	3.7~4.8	3.7~4.8	3.7~4.8	3.7~4.8	3.7~4.8	3.7~4.8	3.7~4.8	3.7~4.8
Free Acid Value (%)	≤5.0	≤5.0

Product Notes

It is recommended that the addition level of all the above magnesium stearate products be 0.1%-6%; the specific dosage depends on the formulation. The above dosages exclude the stabilizer-recommended formulation. CHNV Technology can provide differentiated products or solutions according to customer requirements.

FAQ

1. Is magnesium stearate safe?

According to Directive 1999/45/EC, magnesium stearate is classified as a non-hazardous substance. In addition, according to the magnesium stearate MSDS of CHNV Technology, the product can enter the human body through the skin, eyes or respiration. This may cause harm to the human body, such as irritation to the eyes, respiratory system and skin. Please note that this product is combustible.

2. Is magnesium stearate natural or synthetic?

CHNV mainly produces plant-derived magnesium stearate. Plant-based magnesium stearate is made from natural raw materials through chemical synthesis, so it belongs to the category of 'naturally sourced, synthetically processed' products.