Magnesium Stearate
Product Name: Magnesium Stearate
Molecular formula: Mg［CH3(CH2)16COO］2
CAS NO.: 557-04-0
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Magnesium Stearate
Product Overview
Magnesium Stearate is a high-purity white powder used extensively as a lubricant, anti-caking agent, and release agent across various industries. As a combination of magnesium and stearic acid, it is highly regarded for its hydrophobic properties, making it a popular additive in pharmaceuticals, cosmetics, and food production. Its smooth texture and stabilizing features ensure product consistency and improve manufacturing efficiency.
As one of the leading Magnesium Stearate manufacturers, we at Guangzhou KosNature Co., Ltd. offer premium-grade Magnesium Stearate to meet the stringent requirements of the pharmaceutical, food, and cosmetic sectors.
Applications
- Pharmaceutical Grade Magnesium Stearate: Widely used as an excipient and flow agent in tablet manufacturing. It prevents sticking during the compression process, ensuring smooth tablet production. Magnesium stearate pharmaceutical grade is an essential ingredient in tablets, capsules, and powders.
- Cosmetics: Acts as a binding agent and texture enhancer in a variety of cosmetics and personal care products. Magnesium stearate in cosmetics helps improve the texture of products such as foundations, eyeshadows, and powders.
- Food Additive: Commonly used in food production as an anti-caking agent, ensuring consistent flow and preventing clumping in powdered products. Magnesium stearate food additive enhances product quality and shelf stability.
Key Features
- Excellent lubrication and anti-caking properties
- Improves tablet and powder flow in pharmaceuticals
- Non-toxic, safe for use in food and cosmetics
- Hydrophobic nature, enhancing moisture resistance
Specifications
- Appearance: White, fine powder
- Chemical Formula: C36H70MgO4
- Molecular Weight: 591.27 g/mol
- Solubility: Insoluble in water, soluble in hot ethanol
- HS Code: 29157090
Packaging and Storage
Magnesium Stearate is available in 25 kg bags or customized packaging to meet specific customer needs. Store in a cool, dry area, away from moisture and direct sunlight to preserve product quality.
FAQs
- What is Magnesium Stearate used for in pharmaceuticals?
It is primarily used as a lubricant in tablet and capsule production, preventing the ingredients from sticking to the machinery and ensuring smooth compression. - Can Magnesium Stearate be used in cosmetics?
Yes, it is frequently used in cosmetics as a texture enhancer and binding agent, improving the consistency of powders and creams. - What is the HS Code for Magnesium Stearate?
The HS Code for Magnesium Stearate is 29157090.
For more information or to request a sample, please contact us at sales@kosnature.com
Food Grade
Molecular formula: Mg［CH3(CH2)16COO］2
CAS NO.: 557-04-0
Chemical structural formula:
Main uses
It plays function of lubrication in preparation of tablets.
| Testing item | Testing standard |
| appearance | white bulk powder |
| magnesium oxide content,w/% | 6.8-8.3 |
| loss on drying,w/% | ≤4.0 |
| lead content,Pb/(mg/kg) | ≤5.00 |
| microbial limit(Internal control indicators) | |
| bacteria, cfu/g | ≤1000 |
| mould, cfu/g | ≤100 |
| escherichia coli | not detectable |
Packaging
woven bag lined with high pressure PE film; 20kg/bag or follow customer’s packaging instruction
Cosmetics Grade series
Molecular formula: Mg［CH3(CH2)16COO］2
CAS NO.: 557-04-0
Chemical structural formula:
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Main uses
It is mainly used as lubricating agent, antisticking agent and flow aid.
Quality standard
| Testing standard | USP35-NF30 | |
| Specification and model | MS-4 | MS-6 |
| appearance | white fine powder | white fine powder |
| identification | meet the specification | meet the specification |
| magnesium content, % | 4.0-5.0 | 4.0-5.0 |
| PH value | meet the specification | meet the specification |
| chloride, % | ≤0.1 | ≤0.1 |
| sulfate, % | ≤1.0 | ≤1.0 |
| loss on drying, % | ≤6.0 | ≤6.0 |
| lead, ppm | ≤10 | ≤10 |
| nickel, ppm | ≤5 | ≤5 |
| cadmium, ppm | ≤3 | ≤3 |
| stearic acid content, % | ≥40.0 | ≥65.0 |
| stearic acid&palmitic acid content, % | ≥90.0 | ≥90.0 |
Nontoxic plastic additive series
Product name: Magnesium stearate
English name: Magnesium stearate
Molecular formula: Mg[CH3(CH2)16COO]2
Properties: white powder, insoluble in water, ethyl alcohol and diethyl ether; soluble in hot water, hot ethyl alcohol
Main uses
It is widely used in food, medical, costing, plastic, rubber and textile industry as emulsifying agent, release agent, lubrication agent, stabilizing agent, promoter and cosmetics basic material.
Quality standard
| Testing item | Testing standard |
| appearance | white fine powder |
| magnesium oxide content(in dry), % | 6.8~8.3 |
| loss on drying, % | ≤5.0 |
| free acid, % | ≤1.0 |
| melting point, ℃ | 110~160 |
| fineness, % | 325 mesh ≥99.0% |
Packaging: The PE film lined the polywoven bag. Net wt: 20kg/bag, or follow customer’s packing instructions.
Medicinal Grade
Molecular formula: Mg［CH3(CH2)16COO］2
CAS NO.: 557-04-0
Main uses
It is mainly used as lubricating agent, antisticking agent and flow aid.
Quality standard
| Testing item | Testing standard | |
| Specification | USP35-NF30 | BP2013 |
| appearance | white fine powder | white fine powder |
| identification | meet the specification | meet the specification |
| solubility | / | meet the specification |
| magnesium content, % | 4.0-5.0 | 4.0-5.0 |
| PH value | meet the specification | meet the specification |
| chloride, % | ≤0.1 | ≤0.1 |
| sulfate, % | ≤1.0 | ≤1.0 |
| loss on drying, % | ≤6.0 | ≤6.0 |
| lead, ppm | ≤10 | ≤10 |
| nickel, ppm | ≤5 | ≤5 |
| cadmium, ppm | ≤3 | ≤3 |
| stearic acid content, % | ≥40.0 | ≥40.0 |
| stearic acid&palmitic acid content, % | ≥90.0 | ≥90.0 |
| bacteria, cfu/g | ≤1000 | ≤1000 |
| mould, cfu/g | ≤100 | ≤100 |
| pathogenic bacterium | not detectable | not detectable |