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Magnesium stearate is a finely dispersed, greasy powder that is a salt of magnesium and stearic acid. This substance is considered an essential excipient in the production of solid dosage forms and dietary supplements. If you need to buy magnesium stearate, it is important to consider that this substance acts as a lubricant, preventing raw materials from sticking to equipment during pressing.
For large enterprises, buying magnesium stearate wholesale is more cost-effective in industrial quantities, which reduces the cost of finished products. The price of magnesium stearate depends on the product's purity, bulk density, and compliance with international quality standards. What is magnesium stearate and what is it used for? Many manufacturers search for information on "What is magnesium stearate?" It is a highly effective lubricant that ensures uniform distribution of active ingredients in the mixture. What is magnesium stearate used for in production:
- Magnesium stearate in tablets: it prevents the powder mass from sticking to the punches and walls of tablet press dies.
- Magnesium stearate in drugs: the substance ensures the fluidity of the granulate and the dosing accuracy of each unit of the drug.
- Magnesium stearate in pharmaceuticals: the substance meets the requirements of international standards (USP, Ph.Eur., BP), which guarantees safety for use in medicine.
- Magnesium stearate in cosmetics: it is used as a filler and structurant in powders, blush, and eye shadows, improving the adhesion of the product to skin.
When searching for "buy magnesium stearate," specialists often prefer vegetable magnesium stearate, obtained from vegetable fats.
Product Characteristics
This table provides the full technical parameters of the substance, including data from the Certificate of Analysis and reference sources. For mass production, it is crucial that the magnesium stearate pharmacopeia confirms compliance with all purity tests.
| Indicator | Value |
| Product Name | Magnesium Stearate |
| English Name | Magnesium Stearate / Magnesium Octadecanoate |
| Chemical Formula | Mg(C18H35O2)2 |
| CAS Number | 557-04-0 |
| EINECS | 209-150-3 |
| Appearance | White, very fine, light powder, greasy to the touch |
| Bulk Density | 140 – 350 g/l |
| Particle size distribution (200 mesh sieving) | ≥ 99.5% |
| Acid value (Identification B) | 198 - 210 |
| Magnesium content (Assay) | 4.0% - 5.0% |
| Fatty acid composition (C16 + C18) | ≥ 90.0% |
| Solubility | Practically insoluble in ethanol (with or without water) |
| Quality Standards | USP/NF, Ph.Eur., BP |
| HS Code | 2915.70 |
| Storage Conditions | Store tightly closed container |
Results of Analysis (COA)
The product undergoes strict laboratory testing to ensure compliance with physicochemical and microbiological standards. Actual batch testing data is provided below.
| Test (Indicator) | Specification (Standard) | Actual Result |
| Appearance | White powder, greasy to the touch | Complies |
| Acid Value | 198 – 210 | 204 |
| Loss on drying | ≤ 4.0% | 2.60% |
| Magnesium content | 4.0% - 5.0% | 4.82% |
| C18 fatty acid composition | ≥ 40% | 45.70% |
| Composition of C16 + C18 acids | ≥ 90% | 99.62% |
| Bulk density | 140 - 350 g/l | 320 g/l |
| Heavy metals (Total) | ≤ 20.0 ppm | Complies |
| Lead | ≤ 2.0 ppm | Complies |
| Nickel | ≤ 5.0 ppm | Complies |
| Viable Count | ≤ 1000 cfu/g | 120 |
| Yeast and mold | ≤ 100 cfu/g | 10 |
| E. coli | Absent | Absent |
| Salmonella | Absent | Absent |
Where to buy magnesium stearate and its price
If your business needs to buy magnesium stearate in Ukraine with a guarantee of purity, the optimal solution is to choose a direct supplier. The price of magnesium stearate depends not only on the supply volume but also on the physical properties of the powder, such as bulk density, which is critical for automated tablet compression lines. Magnesium stearate in tablets must be chemically inert and comply with pharmacopoeial monographs to avoid affecting the release of the active ingredient. Constant monitoring of queries for "buy magnesium stearate" confirms the high demand for this raw material among domestic dietary supplement manufacturers. Conclusion To ensure production with a reliable glidant and a complete package of technical documentation (COA, specifications), we recommend partnering with uhtrade.com.ua. Here you can officially buy magnesium stearate wholesale with delivery nationwide. Pharmacopoeial-grade magnesium stearate is available on the uhtrade.com.ua platform for all industries, from pharmaceuticals to household chemicals and cosmetics. Pharmacopoeial-grade magnesium stearate is available for all industries, from pharmaceuticals to household chemicals and cosmetics.