Name: Fumed Aluminum Oxide, Al2O3, CAS 1344-28-1
Brand: Heeger Materials Inc
SKU: HM3041

Data sheet

Particle Size	10-30 nm, or customized
Molecular Formula	Al2O3
Appearance	white powder
Molecular Weight	101.96 g/mol
Purity	≥99.9%
CAS	1344-28-1

More info

Fumed Aluminum Oxide, also called fumed alumina or pyrogenic alumina, is a high-purity material that reduces magnetic contamination and ensures a clean environment for battery-grade applications. It is produced through a high-temperature vapour-phase process. It is a fine white powder composed of nanoscale particles with unique physical and chemical properties. It is well-suited for various processing techniques, including dry coating and wet mixing, with excellent particle flowability, low agglomeration tendency, and high batch-to-batch consistency. This product is particularly suitable for lithium-ion battery anodes, where surface coating uniformity and interface stability are crucial. In addition to this product, we also offer the Alumina Series for Anode Doping and Coating, HMBAK Series (Al2O3) Powder, HMBAH Series (Al2O3) Powder, HMBAM Series (Al2O3) Powder, Near-Spherical Alumina (Al2O3) Powder, Nanoparticle Spherical Alumina Powder, HM Top Cut Series Spherical Alumina Powder to meet diverse application requirements. Heeger Materials offers high-quality Fumed Aluminum Oxide, providing customized solutions and competitive prices.

Fumed Aluminum Oxide Specifications

Specification		Index
Specification		HPQ-100
Crystalline		γ
Purity		≥99.9%
TEM Particle Size（nm）		20
BET Surface Area（㎡/g）		100±15
Bulk Density（g/cm³）		≤0.1
ICP-OES Element Content (ppm)	Fe	≤100
	Na	≤10
	Ca	≤50
	Si	≤100
	Zn	≤10
	Cu	≤10
	Ni	≤10

Fumed Aluminum Oxide SEM

Vapor Phase Alumina SEM

Fumed Aluminum Oxide Key Features

High Purity: Low magnetic impurities, minimizing impact on the battery environment.
Ultrafine Particle Size: Typically in the nanometer range.
Excellent Dispersibility: Fumed aluminum oxide exhibits excellent dispersibility in various liquid and solid systems.
Large Surface Area: Its small particle size and porous structure provide a high surface area, facilitating superior adsorption, reactivity, and interaction with other substances.
Thermal Stability: Resistant to high temperatures, maintaining performance even under extreme conditions.
Low Bulk Density: Fumed aluminum oxide exhibits a low bulk density, which allows for better flowability and improved handling in various processes, such as powder blending, filling, and transportation.
Positive Surface Charge: Fumed aluminum oxide carries a positive surface charge, which improves dispersion stability in liquids and enhances compatibility with negatively charged surfaces and certain polymers.

Fumed Aluminum Oxide Applications

Phosphor Coatings: Serves as a selective UV reflector, mercury diffusion barrier, and inorganic binder for the phosphor layer. It forms a protective alumina coating to extend the product's service life.
Inkjet Paper Coatings: Enhances the absorption rate and adhesion of aqueous inks, resulting in vibrant, high-definition print output with rich colour gradation and a high-gloss finish.
Thermal Insulation Materials: Its highly porous structure, high melting point, and ultrafine particles increase the heat resistance rating of the material. It enhances overall strength with minimal addition due to its high specific surface area.
Melt-Blown Electret Masterbatch: The inherent positive charge of fumed alumina enhances the charge retention and stability of the electret masterbatch, ensuring superior melt-blown fabric quality and improving the filtration efficiency of face masks.
Lithium-Ion Batteries: Forms a dense protective coating on cathode materials to improve capacity retention and cycle life; increases separator porosity while maintaining thermal stability; and enhances electrolyte absorption, wettability, and ionic conductivity for superior cycling performance and safety.
Powder Coatings: Prevents caking and improves powder flowability. It enhances electrostatic spray application and deposition efficiency, while also increasing coating density and abrasion resistance (recommended addition: 0.1-0.3%).

Fumed Aluminum Oxide Packing

Fumed Aluminum Oxide should be stored in a sealed container in a dry, cool place and protected from air for an extended period. HM offers vacuum-sealed packaging, including 100g/bag, 500g/bag, 1kg/bag, and 25kg/drum or customized packaging as per specific requirements.

Where to Buy Fumed Aluminum Oxide in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Semiconductor products including Fumed Aluminum Oxide, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

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