Magnesium Stearate
White, fine, light, free-flowing powder · CAS 557-04-0
Overview
Magnesium Stearate (CAS 557-04-0) is one of the specialty chemicals products Suraj Chemicals supplies to industrial, institutional and manufacturing buyers across India from our Chennai base. It is commonly used for tablet and capsule lubricant in pharmaceutical manufacturing; anti-caking and free-flow agent for powder formulations; lubricant/release agent in plastics and rubber compounding, among other applications in the specialty chemicals category. We pack Magnesium Stearate in 25 kg bags, and can arrange bulk, drum or tanker quantities for larger requirements — full characteristics, applications and downloadable documentation are below, or you can request a quote directly.
Specification Sheet — Characteristics
Download Specification Sheet (PDF)| Characteristics | Specifications |
|---|---|
| Magnesium Content | 4.0% – 5.0% |
| Assay (Total Fatty Acid Content) | 96% – 101% |
| Melting Point | 126 – 130°C approx. |
| Moisture | 4% Max |
| Specific Surface Area | Fine, controlled per grade (pharma grade) |
Values above are well-established typical/standard specification properties for this product, compiled from published technical references — not a batch-specific lab report. Figures can vary batch to batch — request a current certificate of analysis with your order.
Applications
- Tablet and capsule lubricant in pharmaceutical manufacturing
- Anti-caking and free-flow agent for powder formulations
- Lubricant/release agent in plastics and rubber compounding
- Cosmetic-powder ingredient
Frequently Asked Questions
What is Magnesium Stearate?
Magnesium Stearate is supplied by Suraj Chemicals as white, fine, light, free-flowing powder, identified by CAS number 557-04-0. It falls under our Specialty Chemicals range — see the Specification Sheet table above for its full characteristics.
What is Magnesium Stearate used for?
Typical applications include: Tablet and capsule lubricant in pharmaceutical manufacturing; Anti-caking and free-flow agent for powder formulations; Lubricant/release agent in plastics and rubber compounding; Cosmetic-powder ingredient.
How should Magnesium Stearate be stored and handled?
Store in a cool, dry place away from strong oxidisers and open flame. Low-hazard, mildly combustible solid under normal handling.
What packaging and pack sizes does Suraj Chemicals supply Magnesium Stearate in?
25 kg bags. Contact us if you need a different pack size, or a bulk/tanker quantity.
What is the shelf life of Magnesium Stearate?
Typically 3–6 months from date of manufacture when stored sealed, in a cool place away from direct sunlight and heat. Active content in hypochlorite / oxidising products declines gradually over time, so this is one to watch closely. As with any industrial chemical, request the current batch's manufacturing date and a fresh certificate of analysis for orders where exact remaining shelf life matters.
Is Magnesium Stearate hazardous to handle?
Yes — Magnesium Stearate is combustible and should be kept away from heat and ignition sources. Follow the storage and handling guidance above, use appropriate PPE, and download the Safety Data Sheet (SDS/MSDS) in the sidebar above for full GHS hazard, handling and PPE details.
Is a Specification Sheet, TDS or MSDS available for Magnesium Stearate?
Yes — a downloadable Specification Sheet (PDF) with full characteristics and specifications is available above, and a downloadable Safety Data Sheet (SDS/MSDS) for Magnesium Stearate is also available above.
Can I get a sample or discuss order quantity for Magnesium Stearate?
Yes — use the Request Price & Availability button or WhatsApp us with your required quantity, and our team will confirm pricing, minimum order quantity, sample availability and delivery timelines for Magnesium Stearate.