MAGNESIUM SALTS OF FATTY ACIDS

Magnesium Salts of Fatty Acids are metallic soaps formed from magnesium and long-chain fatty acids, and Magnesium Salts of Fatty Acids are widely used as lubricants, anti-caking agents, release agents, and processing aids in food, pharmaceutical, cosmetic, and industrial applications.
Magnesium Salts of Fatty Acids are commonly represented by magnesium stearate and related magnesium soaps, and Magnesium Salts of Fatty Acids are valued for hydrophobicity, slip, and boundary lubrication that improve powder flow and reduce sticking to processing equipment.
Magnesium Salts of Fatty Acids performance depends on fatty acid composition, particle size, surface area, and moisture content, so grade selection and controlled addition are important for consistent results.

CAS Number: 557-04-0 (Magnesium Stearate; typical representative)
EC Number: 209-150-3 (Magnesium Stearate; typical representative)
Molecular Formula: C36H70MgO4 (Magnesium Stearate; typical representative)
Molecular Weight: 591.27 g/mol (Magnesium Stearate; typical representative)

Synonyms: Magnesium Salts of Fatty Acids, Magnesium Stearate, Magnesium Soap, Magnesium Octadecanoate, Vegetable Magnesium Stearate (source dependent), Magnesium Salts of Stearic and Palmitic Acids, Magnesium Fatty Acid Salts, Magnesium Lubricant for Tablets, Anti-Caking Magnesium Fatty Acid Salt, Release Agent Magnesium Salt, E470b, Food Additive E470b, Magnesium Stearate Excipient, Magnesium Salts of Fatty Acids, Magnesium Salt of Fatty Acids, Magnesium Fatty Acid Salts, Fatty Acid Magnesium Salts, Magnesium Soaps of Fatty Acids, Magnesium Soap of Fatty Acids, Magnesium Carboxylates of Fatty Acids, Magnesium Fatty Acid Carboxylates, Magnesium Salts of Edible Fatty Acids, Magnesium Salts of Food Fatty Acids, Magnesium Salts of Vegetable Fatty Acids, Magnesium Salts of Long Chain Fatty Acids, Magnesium Salts of Higher Fatty Acids, Magnesium Salts of C12-C18 Fatty Acids, Magnesium Fatty Acid Soap, Magnesium Fatty Acid Soaps, Magnesium Stearate Type Fatty Acid Salts, Magnesium Palmitate Type Fatty Acid Salts, Magnesium Oleate Type Fatty Acid Salts, Magnesium Laurate Type Fatty Acid Salts, Magnesium Fatty Acid Derivatives, Magnesium Fatty Acid Blend, Magnesium Fatty Acid Mixture, Magnesium Fatty Acid Complex, Magnesium Fatty Acid Composition, Magnesium Fatty Acid Ingredient, Magnesium Fatty Acid Additive, Magnesium Fatty Acid Food Additive, Magnesium Fatty Acid Emulsifier, Magnesium Fatty Acid Stabilizer, Magnesium Fatty Acid Processing Aid, Magnesium Fatty Acid Surface Active Agent, Magnesium Fatty Acid Anti-Caking Agent, Magnesium Fatty Acid Release Agent, Magnesium Fatty Acid Lubricant, Magnesium Soap Blend, Magnesium Soap Powder, Magnesium Fatty Acid Salts Food Grade, Magnesium Fatty Acid Salts Technical Grade, Magnesium Fatty Acid Salts Industrial Grade, Magnesium Fatty Acid Salts Pharmaceutical Grade, Magnesium Fatty Acid Salts Cosmetic Grade, Magnesium Fatty Acid Salts Additive Grade, Magnesium Fatty Acid Salts Emulsifier Grade, Magnesium Fatty Acid Salts Stabilizer Grade, Magnesium Fatty Acid Salts Lubricant Grade, Magnesium Fatty Acid Salts Anti-Caking Grade, Magnesium Salts of Fatty Acids Food Grade, Magnesium Salts of Fatty Acids Technical Grade, Magnesium Salts of Fatty Acids Industrial Grade, Magnesium Salts of Fatty Acids Pharmaceutical Grade, Magnesium Salts of Fatty Acids Cosmetic Grade, Magnesium Salts of Fatty Acids Additive Grade, Magnesium Salts of Fatty Acids Emulsifier Grade, Magnesium Salts of Fatty Acids Stabilizer Grade, Magnesium Salts of Fatty Acids Anti-Caking Agent, Magnesium Salts of Fatty Acids Lubricant, Magnesium Salts of Fatty Acids Release Agent

APPLICATIONS

Magnesium Salts of Fatty Acids are used in tablet manufacturing as lubricants to reduce friction during compression and ejection.
Magnesium Salts of Fatty Acids are incorporated into tablet blends to prevent sticking to punches and dies and to improve die fill consistency.
Magnesium Salts of Fatty Acids are used in direct compression formulations to improve flow and reduce tooling wear.

Magnesium Salts of Fatty Acids are used in capsule filling to improve powder flow and reduce segregation during dosing.
Magnesium Salts of Fatty Acids are incorporated into capsule blends to improve uniformity and reduce bridging in hoppers.
Magnesium Salts of Fatty Acids are used in granulation systems to improve discharge and reduce sticking during processing.

Magnesium Salts of Fatty Acids are used in food processing as anti-caking agents to improve flow of powdered ingredients.
Magnesium Salts of Fatty Acids are incorporated into seasoning blends to reduce clumping and improve dispensing.
Magnesium Salts of Fatty Acids are used in powdered sugar and salt systems to improve free-flowing behavior in storage.

Magnesium Salts of Fatty Acids are used in confectionery as processing aids to improve flow and reduce sticking in molding and tableting.
Magnesium Salts of Fatty Acids are incorporated into chewing gum base processing to improve release and reduce sticking.
Magnesium Salts of Fatty Acids are used in tablet-like confectionery to improve compressibility and reduce tooling adhesion.

Magnesium Salts of Fatty Acids are used in cosmetics as slip agents and processing aids to improve powder spread and feel.
Magnesium Salts of Fatty Acids are incorporated into pressed powders to improve compacting behavior and reduce caking.
Magnesium Salts of Fatty Acids are used in color cosmetics to improve skin feel and reduce tack in formulations.

Magnesium Salts of Fatty Acids are used in plastics processing as mold release agents and internal lubricants to improve processing efficiency.
Magnesium Salts of Fatty Acids are incorporated into PVC and other polymers to improve flow during extrusion and molding.
Magnesium Salts of Fatty Acids are used in polymer compounding to reduce die buildup and improve surface finish.

Magnesium Salts of Fatty Acids are used in rubber processing as release agents and processing aids to reduce sticking on rolls and molds.
Magnesium Salts of Fatty Acids are incorporated into elastomer compounding to improve mixing and reduce tack.
Magnesium Salts of Fatty Acids are used in gasket and seal production to improve demolding and part release.

Magnesium Salts of Fatty Acids are used in paints and coatings as rheology modifiers and matting aids in some systems.
Magnesium Salts of Fatty Acids are incorporated into coating powders to improve flow and anti-blocking behavior.
Magnesium Salts of Fatty Acids are used in ink and coating formulations to adjust slip and reduce rub-off in compatible designs.

Magnesium Salts of Fatty Acids are used as release agents in food contact applications where regulations allow and food-grade specifications are met.
Magnesium Salts of Fatty Acids are incorporated into bakery release systems to improve demolding and reduce product sticking.
Magnesium Salts of Fatty Acids are valued because Magnesium Salts of Fatty Acids improve powder flow, lubrication, and release across many manufacturing processes when used at optimized low levels.

Magnesium Salts of Fatty Acids are used as flow agents and lubricants in tablet manufacturing.
Magnesium Salts of Fatty Acids reduce friction between powder and tooling during compression.
Magnesium Salts of Fatty Acids help prevent sticking and improve tablet ejection.

Magnesium Salts of Fatty Acids are used in pharmaceutical tablets as anti-adherents to reduce punch sticking.
Magnesium Salts of Fatty Acids support smoother tablet surfaces by reducing die-wall friction.
Magnesium Salts of Fatty Acids help improve manufacturing efficiency at high tablet press speeds.

Magnesium Salts of Fatty Acids are used in dietary supplement tablets as a lubricant and flow aid.
Magnesium Salts of Fatty Acids support consistent fill weight by improving powder flow in hoppers.
Magnesium Salts of Fatty Acids help reduce capping and lamination by improving compaction dynamics.

Magnesium Salts of Fatty Acids are used in direct compression blends to improve processability.
Magnesium Salts of Fatty Acids support uniform powder movement and reduce segregation risk in some blends.
Magnesium Salts of Fatty Acids help improve reproducibility in tablet production.

Magnesium Salts of Fatty Acids are used in capsule filling as a flow aid to improve powder dosing.
Magnesium Salts of Fatty Acids support smoother flow through dosing equipment.
Magnesium Salts of Fatty Acids help reduce variation in capsule fill weights.

Magnesium Salts of Fatty Acids are used in granulation processes to improve lubrication of granules.
Magnesium Salts of Fatty Acids support reduced friction during compression of granulated blends.
Magnesium Salts of Fatty Acids help improve tablet hardness at controlled lubricant levels.

Magnesium Salts of Fatty Acids are used in effervescent tablets to improve tooling release in some systems.
Magnesium Salts of Fatty Acids support reduced sticking under high humidity conditions during compression.
Magnesium Salts of Fatty Acids help improve throughput in effervescent manufacturing.

Magnesium Salts of Fatty Acids are used in chewable tablets to reduce sticking and improve mouthfeel in some formulations.
Magnesium Salts of Fatty Acids support smoother compression of sugar-alcohol based blends.
Magnesium Salts of Fatty Acids help improve tablet appearance and reduce picking.

Magnesium Salts of Fatty Acids are used in lozenges and compressed confectionery to improve release from dies.
Magnesium Salts of Fatty Acids support high-speed production of pressed candies.
Magnesium Salts of Fatty Acids help reduce surface defects caused by sticking.

Magnesium Salts of Fatty Acids are used in cosmetic powders as a slip agent and texture modifier.
Magnesium Salts of Fatty Acids support improved spreadability in pressed powders and blushes.
Magnesium Salts of Fatty Acids help reduce caking and improve feel on skin.

Magnesium Salts of Fatty Acids are used in face powders to improve pressability and reduce pan hardening.
Magnesium Salts of Fatty Acids support smoother pickup and better pay-off.
Magnesium Salts of Fatty Acids help improve sensory softness in powder cosmetics.

Magnesium Salts of Fatty Acids are used in eyeshadows to improve slip and blendability.
Magnesium Salts of Fatty Acids support smoother application and reduced patchiness.
Magnesium Salts of Fatty Acids help improve wear perception by improving powder cohesion.

Magnesium Salts of Fatty Acids are used in sunscreen powders and dry-touch products to improve sensory feel.
Magnesium Salts of Fatty Acids support reduced tack and improved matte finish.
Magnesium Salts of Fatty Acids help improve spreading of powders on skin.

Magnesium Salts of Fatty Acids are used in personal care sticks such as deodorant sticks as a structuring and slip aid in some systems.
Magnesium Salts of Fatty Acids support improved glide and reduced drag during application.
Magnesium Salts of Fatty Acids help stabilize stick texture in compatible formulations.

Magnesium Salts of Fatty Acids are used in antiperspirant sticks to improve pay-off and reduce residue in some formulations.
Magnesium Salts of Fatty Acids support smoother application and better sensory feel.
Magnesium Salts of Fatty Acids help reduce crumbling and improves stick integrity.

Magnesium Salts of Fatty Acids are used in creams and lotions as a thickening and stabilizing aid in some formulations.
Magnesium Salts of Fatty Acids support emulsion stability by increasing viscosity.
Magnesium Salts of Fatty Acids help reduce phase separation in selected systems.

Magnesium Salts of Fatty Acids are used in ointments as a consistency modifier in some formulations.
Magnesium Salts of Fatty Acids support improved structure and reduced oil separation.
Magnesium Salts of Fatty Acids help provide a smoother, less greasy feel in some ointments.

Magnesium Salts of Fatty Acids are used in oral care formulations as a polishing and texture aid in some systems.
Magnesium Salts of Fatty Acids support improved mouthfeel in tooth powders.
Magnesium Salts of Fatty Acids help improve flow of powdered oral care products.

Magnesium Salts of Fatty Acids are used in food supplements as a source of magnesium and as a processing aid in some tablets.
Magnesium Salts of Fatty Acids support both mineral labeling and manufacturing lubrication.
Magnesium Salts of Fatty Acids help improve production robustness in mineral tablets.

Magnesium Salts of Fatty Acids are used as anti-caking agents in certain powdered foods and ingredients in some markets.
Magnesium Salts of Fatty Acids support improved flow in seasoning blends and dry mixes.
Magnesium Salts of Fatty Acids help reduce bridging in packaging lines.

Magnesium Salts of Fatty Acids are used as release agents in food processing in some applications.
Magnesium Salts of Fatty Acids support reduced sticking on conveyor belts and molds in suitable processes.
Magnesium Salts of Fatty Acids help improve throughput by preventing product adhesion.

Magnesium Salts of Fatty Acids are used in bakery pan release systems as part of release agent blends.
Magnesium Salts of Fatty Acids support clean release of baked goods from pans.
Magnesium Salts of Fatty Acids help reduce pan residue and cleaning needs.

Magnesium Salts of Fatty Acids are used in sugar confectionery processing to reduce sticking in molds and forming equipment.
Magnesium Salts of Fatty Acids support better demolding of candies and gums.

DESCRIPTION

Magnesium Salts of Fatty Acids are hydrophobic, waxy powders formed by reacting fatty acids with magnesium, and the most common representative is magnesium stearate.
Magnesium Salts of Fatty Acids provide lubrication by forming a thin boundary layer that reduces metal-to-powder and powder-to-powder friction.
Magnesium Salts of Fatty Acids can strongly affect tablet hardness and dissolution if overdosed or overmixed, so mixing time and dosage control are critical in pharmaceutical applications.

Magnesium Salts of Fatty Acids reduce moisture uptake and improve flow by coating particles, and this is why Magnesium Salts of Fatty Acids are effective anti-caking agents in dry blends.
Magnesium Salts of Fatty Acids performance depends on particle size and surface area, and finer grades lubricate more strongly but can also reduce tablet bonding if not controlled.
Magnesium Salts of Fatty Acids are typically stable under dry storage, but moisture and compression history can change apparent performance in some processing environments.

Magnesium Salts of Fatty Acids should be stored in tightly closed containers in a cool, dry place to prevent moisture pickup and contamination.
Magnesium Salts of Fatty Acids powders can generate dust, so dust control and appropriate PPE are recommended during handling.
Magnesium Salts of Fatty Acids should be used according to applicable regulations and specifications for the intended market and product category.

PROPERTIES

Common Name: Magnesium Salts of Fatty Acids
Food Classification: E470b (common classification)
Chemical Type: Metallic soaps; hydrophobic fatty acid magnesium salts
Appearance: White to off-white fine powder
Odor: Odorless to slight characteristic odor
Solubility: Practically insoluble in water; soluble in some hot organic solvents (grade dependent)
Function: Lubricant, anti-caking agent, release agent, flow aid, slip agent
Hydrophobicity: High; provides water repellency and moisture barrier effect in powders
Particle Size: Grade dependent; influences lubrication strength and flow behavior
Stability: Stable under dry storage; moisture and overmixing can change performance in some applications
Storage Temperature: 15–25°C, dry, tightly closed
Shelf Life: Typically 24–60 months in original sealed packaging (supplier dependent)

FIRST AID

Inhalation:
Move to fresh air if dust is inhaled.
Seek medical attention if respiratory irritation persists.
Avoid breathing dust during handling and powder transfer.

Skin Contact:
Wash with soap and water after contact.
Remove contaminated clothing and wash before reuse.
Seek medical advice if irritation develops or persists.

Eye Contact:
Rinse cautiously with water for several minutes.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek medical attention if irritation persists.

Ingestion:
Rinse mouth with water.
Seek medical attention if discomfort occurs or if a large amount is swallowed.
Never give anything by mouth to an unconscious person.

Note to Physicians:
Treat symptomatically.
No specific antidote is required.
Provide supportive care based on exposure route and symptoms.

HANDLING AND STORAGE

Handling:
Use appropriate PPE including gloves and safety glasses, and use dust protection as needed.
Avoid generating dust and avoid inhalation of fine powder.
Use controlled addition to prevent dust clouds and improve blend uniformity.

Ventilation:
Use local exhaust or general ventilation where dust may be generated.
Maintain good airflow during weighing, charging, and blending operations.
Minimize airborne particulate accumulation in enclosed areas.

Storage:
Store in tightly closed containers in a cool, dry place.
Protect from moisture to prevent caking and maintain free-flowing behavior.
Keep containers properly labeled and protected from contamination.

Spill and Leak Procedures:
Sweep up spilled material and avoid dust generation.
Collect into suitable containers for reuse or disposal according to local regulations.
Clean residues with wet wiping if needed to reduce airborne dust.

Handling Precautions:
Control dosage and mixing time in tablet manufacture because over-lubrication can reduce tablet hardness and slow dissolution.
Select particle size and grade according to the target process because lubrication strength and flow improvement vary with surface area.
Rotate stock using FIFO practices to maintain consistent quality and predictable processing performance.