Hydroxyaluminum distearate CAS 300-92-5

Product Name: Aluminum Distearate
English Alias: Aluminium distearate; Dihydroxyaluminum stearate; Hydroxyaluminum distearate
CAS Number: 300-92-5
Molecular Formula: C₃₆H₇₁AlO₅
Molecular Weight: 611.0 g/mol
Appearance: White to off-white fine powder
Package: 20 kg/bag (multi-layer paper bag with inner PE liner)

What is Aluminum Distearate？

Aluminum Distearate is a metallic soap of aluminum and stearic acid. It appears as a white to off-white, fine, free-flowing powder with a characteristic mild fatty odor. The compound is insoluble in water, alcohol, and ether, but soluble in petroleum, oils, and organic solvents upon heating. It functions as an effective thickener, gelling agent, and stabilizer in various industrial applications, particularly in greases, paints, and cosmetic formulations. Its hydrophobic properties make it valuable for waterproofing applications.

COA (Certificate of Analysis):

Test items Results	Specification
Appearance   Conforms	White or Faint Yellow Powder
Melting point  154.3℃	≥150℃
Free Fatty acid  2.8%	≤5.0%
Assay                                                                4.0-5.2%	4.5%

Application:

Grease and Lubricants: Thickening agent in aluminum complex greases and lubricating formulations

Paints and Coatings: Flatting agent, suspending agent, and waterproofing additive

Cosmetics: Opacifying agent, viscosity modifier in creams, ointments, and makeup products

Plastics: Lubricant and stabilizer in PVC and other polymer processing

Inks: Gelling agent and viscosity controller in printing ink formulations

Construction: Waterproofing additive in cement and concrete formulations

Safety Profile:

Aluminum Distearate is generally considered to have low acute toxicity. However, inhalation of dust may cause respiratory irritation. Prolonged or repeated exposure may cause skin dryness. Eye contact may cause mild irritation. Use appropriate personal protective equipment including dust mask, safety glasses, and gloves when handling. Avoid creating dust and provide adequate ventilation. The substance may cause long-term adverse effects in the aquatic environment. For comprehensive safety information, always refer to the full Safety Data Sheet (SDS).

Storage Requirements:

Store in a cool, dry, well-ventilated area

Keep containers tightly closed and sealed

Protect from moisture and strong odors

Maintain storage temperature below 30°C

Relative humidity below 65% recommended

Keep away from incompatible materials and strong oxidizing agents

Transport & Packaging:

Aluminum Distearate is packaged in multi-layer paper bags with polyethylene inner liner (20 kg net weight per bag). Transport as non-hazardous material under normal conditions. Ensure containers are properly sealed and protected from moisture during transportation. Store away from heat sources and incompatible materials during transit and storage.