Magnesium stearate is a white, nontoxic powder that is insoluble in water and ethanol but soluble in hot organic solvents and acids.
Molecular Formula: Mg(C17H35COO)2
Molecular Weight: 590
CAS No.: 557-04-0
EC No.: 209-150-3
Magnesium stearate is a versatile oleochemical compound characterized by its white, powdery form and wide range of industrial applications. Hancore Lubricant LLC’s magnesium stearate is produced through a reaction of vegetable-based stearic acid with magnesium salts. This non-toxic compound is insoluble in water and ethanol but soluble in hot organic solvents and acids. Due to its unique properties, it is widely regarded as safe and is extensively utilized across various industries.
1. Good dispersing properties;
2. Good mold-releasing properties.
Magnesium stearate serves as an essential component in polymers, PVC, pencil lead, tablets, and cosmetics. With excellent chemical stability, it functions effectively as a lubricant, anti-stick agent, mold release agent, and heat stabilizer.
1.Polymer Industry Applications
In polymer production, magnesium stearate performs two key roles:
These properties enhance product stability while improving the quality and performance of polymer products.
2.PVC Heat Stabilization
Beyond its lubricating properties, magnesium stearate provides critical heat stabilization in PVC processing. It prevents material degradation by maintaining thermal stability during production.
3.Pencil Lead Production
In pencil manufacturing, magnesium stearate improves graphite-binder amalgamation. This results in stronger lead cores and smoother writing performance.
4.Pharmaceutical Tableting
The pharmaceutical industry relies on magnesium stearate as both a lubricant and anti-adhesive agent during tablet compression. It:
5.Cosmetics Formulation
Widely used in cosmetic manufacturing, magnesium stearate functions as a:
Found in powders, eye shadows, and blushes, it improves product softness, smoothness, and stability while ensuring easier application.
Product | Magnesium Stearate | Magnesium Stearate | |
Profile | CM702S | CM720 | |
Appearance | White Powder | White Pellets | |
Metal Content (Ca, %) | 3.7~4.8 | 3.7~4.8 | |
Free Fatty Acid (%) | ≤1.0 | ≤3.0 | |
Volatile Matter at 105℃ (%) | ≤2.0 | ≤3.0 | |
Melting Point (℃) | ≥120 | ≥120 | |
Sieve Rate (%) | 99.5% pass through 200 mesh | — | |
Applications | PVC | ● | ◎ |
Petro-ABS | ● | ◎ | |
PMC | ● | — | |
Pencil Lead | ● | ◎ | |
Tablet | ◎ | — | |
Textile | ◎ | ◎ | |
Cosmetics | ◎ | — | |
Packaging | 20 kg/bag | 20 kg/bag | |
Note:
● Excellent, recommended use
◎ Good, applicable
⊗ Not recommended to use
— Not Applicable
The advised dosage is 0.1%~6.0% except PVC stabilizer recommended formula, detail dosage will be advised and fixed by detail formula, can provide differentiated products or solutions according to customer requirements.
Storage and transport under a shady, cool, and ventilated environment; Avoid acid, alkal, and corrosive substances. Keep it away from the humidity, hotness, fire, and corrosion.
In accordance with Directive 1999/45/EC, the magnesium stearate belongs to the non-dangerous article.
Besides, according to the MSDS, this product can invade the human body through the skin, eyes, or breathing. This may cause harm to people, like irritating the eyes, respiratory system, and skin.
Noted that the product can burn.
Hancore Lubricant LLC primarily produces vegetable-derived magnesium stearate. Vegetable-based magnesium stearate is chemically synthesized from natural raw materials and is therefore a “natural source, synthetic process” product.