Description

Fatty Acids, C16-18, Magnesium Salts is a metallic soap derived from palmitic and stearic acids, offering a stable, solid form of these fatty acids with unique functional properties. This compound is valued for its role as a versatile processing aid, lubricant, and stabilizer in industrial formulations. It is primarily utilized by manufacturers in the plastics, rubber, cosmetics, and pharmaceutical industries seeking to improve product texture, flow, and thermal stability.

Application

• Plastic and Rubber Processing: Acts as an internal/external lubricant and acid scavenger (stabilizer) in PVC and polyolefin production, improving flow properties and surface finish.
• Cosmetics and Personal Care: Functions as a viscosity modifier, opacifying agent, and stabilizer in creams, lotions, and stick formulations like deodorants.
• Pharmaceuticals: Used as a tablet and capsule lubricant and as a component in sustained-release matrix formulations.
• Coatings and Inks: Serves as a flatting agent, dispersant, and rheology modifier to control gloss and pigment suspension.
• Food Contact Materials: Employed as a release agent and lubricant in the production of food packaging plastics.
• Industrial Greases and Lubricants: Functions as a thickener and stabilizer in grease formulations.

Basic Information

Product Name	Fatty Acids, C16-18, Magnesium Salts
CAS No.	91031-63-9
Molecular Formula	Typically Mg(C17H35COO)2 / Mg(C15H31COO)2 mixture
Molecular Weight	~591-627 g/mol (for distearate/dipalmitate)
Synonyms	Magnesium Stearate (Palmitate); Magnesium Distearate; Magnesium Dipalmitate; Magnesium (C16-18) Fatty Acid Salts; Octadecanoic Acid, Magnesium Salt (mixed with Hexadecanoic acid); Metallic Soap; Mg-St; EINECS 292-909-9
EINECS	292-909-9

Quality Control

Our Fatty Acids, C16-18, Magnesium Salts is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, composition, and performance. Certificates of Analysis (COA) documenting key parameters such as magnesium content, fatty acid composition, loss on drying, and heavy metal limits are available upon request. We can supply grades suitable for industrial, cosmetic, and pharmaceutical applications, with compliance to relevant guidelines.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture which can lead to caking or performance degradation. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Fine, white powder
Identification (IR)	Complies
Assay (as MgO)	6.5 - 8.5 %
Loss on Drying	≤ 5.0 %
Acid Value	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Particle Size (Typical)	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.