Aluminum Monostearate

Pharmaceutical Gels: Used to prepare stable, oily injections and ointments, ensuring controlled release of active ingredients.
Cosmetic Emulsions: Functions as an emulsion stabilizer and thickener in high-end lotions, sunscreens, and decorative cosmetics.
Ink Manufacture: Applied in specialty printing inks to control flow properties and prevent the settling of heavy pigments.

Aluminum Dihydroxy Stearate, Dihydroxy(octadecanoato-O)aluminum.

CAS: 7047-84-9
EC: 230-325-5
Sectors: Personal Care & Cosmetics, Pharma & Healthcare, Printing & Packaging

Aluminum Monostearate (CAS 7047-84-9) is a metallic salt of stearic acid supplied as a fine, white to yellow-white powder that gels oils, thickens and stabilizes emulsions, and forms films, making it useful in pharmaceutical gels, cosmetic creams and specialty printing inks. Our Pharma/Cosmetic Grade product features high purity and strict control of heavy metal impurities.

This fine, white powder is exceptionally effective at thickening oils and stabilizing emulsions in creams and ointments. It creates a smooth, non-greasy texture and is valued for its film-forming capability, which enhances the moisture barrier on the skin.

In industrial applications, it serves as a dispersing agent for pigments and an additive to improve the consistency of specialized inks. Its amphiphilic nature allows it to bridge the gap between oil and water phases in complex chemical systems.

Typical Properties

Molecular formula	C₁₈H₃₇AlO₄
Molecular weight	344.47 g/mol
Form	powder
Color	yellow-white
Melting point	155 °C
Density	1.020
Water solubility	insoluble H2O; forms gel with aliphatic and aromatic hydrocarbons [HAW93]
Grades available	Pharma Grade, Cosmetic Grade

Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.

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