Product Details
Place of Origin: China
Brand Name: Hongbaiyi
Certification: COA, HPLC
Model Number: HBY-Magnesium Stearate
Document: Product Brochure PDF
Payment & Shipping Terms
Minimum Order Quantity: 1kilo
Price: Negotiable
Packaging Details: woven bag lined high pressure polyethylene film; 25kg/bag or follow customer's packing instructions
Delivery Time: 3~5 days, upon recepient of payment
Payment Terms: T/T, Western Union, MoneyGram
Supply Ability: 300,000 Kilograms
Product Name: |
Magnesium Stearate |
Synonyms: |
Stearic Acid Magnesium Salt |
Linear Formula: |
[CH3(CH2)16CO2]2Mg |
Appearance: |
White Or Off-white Fine Powder |
CAS Number: |
557-04-0 |
Molecular Weight: |
591.24 |
Grade: |
Technical Grade |
Samples: |
1kg |
Product Name: |
Magnesium Stearate |
Synonyms: |
Stearic Acid Magnesium Salt |
Linear Formula: |
[CH3(CH2)16CO2]2Mg |
Appearance: |
White Or Off-white Fine Powder |
CAS Number: |
557-04-0 |
Molecular Weight: |
591.24 |
Grade: |
Technical Grade |
Samples: |
1kg |
What is Magnesium?
Magnesium stearate exhibits a fine, white, and loose powder appearance with a smooth, slippery texture. It is insoluble in water, ethanol, and but soluble in hot water.
Upon exposure to acids, magnesium stearate decomposes into stearic acid and corresponding magnesium salts. Its solubility in room temperature
water is approximately 77-79 mg/L, and it dissolves in hot ethanol. Magnesium stearate possesses a faint characteristic odor and a slippery feel.
Magnesium Stearate Industry Standards in China
Table 1: General Requirement
| Parameter | Requirement |
|---|---|
| Appearance | White or off-white powder |
| Odor | Slight odor, characteristic |
| Melting range | 155°C - 165°C |
| Loss on drying | ≤ 1.0% (105°C, 2 hours) |
| Residue on ignition | ≤ 0.1% |
| Heavy metals (Pb) | ≤ 10 ppm |
| Arsenic (As) | ≤ 2 ppm |
|
Parameter |
Test Method |
Requirement |
|---|---|---|
|
Particle size |
GB/T 19001-2008 |
≤ 100 µm (90%) |
|
Bulk density |
GB/T 19005-2008 |
0.40~0.60 g/cm³ |
|
Angle of repose |
GB/T 19006-2008 |
≤ 30° |
|
Specific surface area |
GB/T 19007-2008 |
≥ 20 m²/g |
|
Oil absorption |
GB/T 19008-2008 |
≥ 100 g/100 g |
|
pH value |
GB/T 19009-2008 |
5.0~8.0 (5% aqueous solution) |
Table 3: Impurities
|
Impurity |
Test Method |
Limit |
|---|---|---|
|
Stearic acid |
GB/T 19010-2008 |
≤ 2.0% |
|
Palmitic acid |
GB/T 19011-2008 |
≤ 1.0% |
|
Calcium stearate |
GB/T 19012-2008 |
≤ 0.1% |
|
Zinc stearate |
GB/T 19013-2008 |
≤ 0.05% |
Note: These standards are based on GB 2510-2020, "Pharmaceutical Grade Magnesium Stearate".
Additional Information:
I hope this information is helpful. Please let me know if you have any other questions.
Excipient list: Key Ingredients & Uses
| Category | Product Name | Description |
|---|---|---|
| Cellulose and derivatives | Microcrystalline cellulose | This product is used as a binder, diluent, filler, disintegrant, and glidant in solid preparations. The amount used is generally 5%-20%. It can be used in both wet granulation and dry direct compression processes. When used for direct compression, the amount used is generally 10%-30%. It also has a good disintegrating effect and is a basic excipient for orally disintegrating tablets. |
| Cellulose and derivatives | Hydroxypropyl methylcellulose | This product can also be used as an anti-caking agent, dispersant, and binder in the food industry. The low viscosity grades of this product can be used as binders and disintegrants in solid preparations, and can also be used as a purifying agent for sustained-release or controlled-release tablets. The high viscosity grades of this product can be used to prepare skeletal sustained-release tablets, hydrophilic gel skeletal sustained-release tablets, as a sustained-release and controlled-release agent, and is also a good suspending agent for suspensions in liquid preparations. It can also be used to prepare hydrogels and gastrointestinal adhesive preparations due to its swelling properties in water. It is one of the main materials for plant capsules. |
| Cellulose and derivatives | Low-substituted hydroxypropyl methylcellulose | This product is mainly used as a binder for tablets, especially for poorly formed materials. The addition of this product can improve the formation and hardness of tablets. This product can also be used as a disintegrant in tablets of Western medicine or traditional Chinese medicine to promote the disintegration of drugs. |
| Cellulose and derivatives | Croscarmellose sodium | This product is mainly used as a disintegrant in solid preparations. Its characteristics are good compressibility and strong disintegrating force. As a disintegrant for tablets, it is suitable for both wet granulation and dry direct compression processes. |
| Starch and derivatives | Dextrin | This product is mainly used as a filler, binder, thickener, and emulsifying stabilizer in solid preparations. |
| Starch and derivatives | Pharmaceutical starch | This product is often used as a filler, disintegrant, and binder in solid preparations. It has poor compressibility, is hygroscopic but not deliquescent, and should not be used alone. It is often used with lactose or dextrin to increase the hardness of tablets. |
| Starch and derivatives | Sodium carboxymethyl starch | This product is mainly used as a disintegrant and binder in solid preparations and as a suspending agent in liquid preparations. The typical usage is 2-8%. This product can also be used as a thickener and stabilizer in the food industry. |
| Starch and derivatives | Beta-cyclodextrin | This product can be used as a complexing agent and stabilizer in formulations, as well as a carrier material for drugs. |
| Inorganic salts | Magnesium stearate | This product has lubricating, anti-adhesive, and flow-promoting effects. It is used as a lubricant and anti-adhesive agent for tablets and capsules. The typical usage is 0.25%-2.0%. |
| Inorganic salts | Silicon dioxide | This product has suspending thickening, and colloidal protective effects in liquid preparations. In solid preparations, it is used as a binder for granules and tablets. Because it is soluble in both water and ethanol, its ethanol solution is used as a binder for water-sensitive drugs and effervescent tablet granules. It can also be used as a solid dispersion, sustained-release, and film-forming material. |
| Other | Povidone K30 | This product is mainly used as a disintegrant for tablets, and can also be used as a disintegrant and filler for pills, granules, and hard capsules. The disintegration time and dissolution effect of tablets prepared with this product will not change over time. The loose density of the granules decreases as the amount of drug used increases, but the density does not change significantly. Tablets compressed with this product as a disintegrant have high hardness, a smooth and beautiful appearance, short disintegration time, and a high dissolution rate. This product can also be used as a clarifying agent, adsorbent, coloring stabilizer, and colloidal stabilizer. |
| Other | Crospovidone |
|
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