aee logoiso9008 logo
An ISO 9001:2008 Registered Firm
13 Foster Street, Bergenfield, NJ 07621
Phone: +1.201.384.5606
FAX: +1.201.387.0291
1.800.486.2436

Interactive OnLine Periodic Table - Click on the Atomic Symbol to see the Atomic Weight, number, history & physical description. Includes CAS, density, crystal structure, % purity, and particle size for each product
Metal Powders & Compounds for Research & Industry
AEE Website Table of Contents

ALUMINUM OXIDE  Al2O3 101.96

CAS

1344-28-1

Melting Point °C

2072

Boiling Point °C

2980

Density G/Cm3

3.965

Mohs Hardness @ 20 °C

9

Elec Resistivity Microhm-Cm

1 x 1022@14 °C

Crystal Structure

Hex
REFERENCE
DATA
Grit Size Conversion from mesh size to microns, millimeters and inches
Element Properties with descriptions, history and uses of all elements
Contstants
Minerals by Hardness
Metal Content of Minerals
Distinct Color of Minerals
Conversion Factors containing more than 4000 of the most used scientific factors from ABAMPS to ZOLOTNIKS
MOHS Scale of Hardness
Temperature
Typical Chemistry
Materials by Density
The AEE Story
Talk to our Aluminum Oxide HELP DESK right now.
CLICK on the telephone, it's a TOLL-FREE call

Prices listed below are subject to change without notice due to market conditions.
Credit Cards or Company Purchase Orders accepted.
Minimum quantity orders may apply.
ORDER FORM

Catalog
No

Product Description

Purity
%

Particle
Size

Cost Per Pound

1-2

3-10

11-25

26-100

AL-600

fused aluminum oxide powder, high purity

99.99

sub-micron

27.88

20.91

18.48

inquire

AL-601

fused aluminum powder, high purity

99.99

1-2 microns

45.52

34.14

31.81

inquire

AL-602

fused aluminum oxide powder

99.9

-44+10 micron

21.90

16.43

15.31

inquire

AL-603

fused aluminum oxide powder

99.9

plasma s.g.

14.79

11.09

10.33

inquire

AL-604

fused aluminum oxide powder

99.9

-200+325 mesh

13.05

9.79

9.12

inquire

AL-605

fused aluminum oxide powder

99.8

-100+240 mesh

18.83

14.12

13.16

inquire

AL-610

fused aluminum oxide powder

99.9

30-50 mesh

N/A

8.34

7.77

inquire

AL-630*

aluminum oxide pellets, white

99.99

10mm x 10mm

inquire

AL-680

aluminum oxide sputtering targets

99.99+

inquire

aluminum oxide powder, brown and white - all grit sizes available - inquire for pricing

BACKGROUND:
Aluminium oxide is an amphoteric oxide of aluminium with the chemical formula Al2O3. It is also commonly referred to as alumina, corundum, sapphire, ruby or aloxite in the mining, ceramic and materials science communities. It is produced by the Bayer process from bauxite. Its most significant use is in the production of aluminium metal, although it is also used as an abrasive due to its hardness and as a refractory material due to its high melting point.

APPLICATIONS:
90% of production is used in the manufacture of aluminium metal. The major uses of specialty aluminium oxides are in refractories, ceramics, and polishing and abrasive applications. Large tonnages are also used in the manufacture of zeolites, coating titania pigments, and as a fire retardant/smoke suppressant.

Alumina is a medium for chemical chromatography..

In lighting, GE developed "Lucalox" in 1961, a transparent alumina used in sodium vapor lamps. Aluminium oxide is also used in preparation of coating suspensions in compact fluorescent lamps.

Health and medical applications include it as a material in hip replacements. It is used in water filters (derived water treatment chemicals such as aluminium sulfate, aluminium chlorohydrate and sodium aluminate, are one of the few methods available to filter water-soluble fluorides out of water). It is also used in toothpaste formulations.

Aluminium oxide is used for its hardness and strength. Most pre-finished wood flooring now uses aluminium oxide as a hard protective coating. In 2004, 3M developed a technique for making a ceramic composed of aluminium oxide and rare earth elements to produce a strong glass called transparent alumina. Alumina can be grown as a coating on aluminium by anodising or by plasma electrolytic oxidation. Both its strength and abrasive characteristics are due to aluminium oxide's great hardness (position 9 on the Mohs scale of mineral hardness).

CHEMISTRY:
The most common form of crystalline alumina, a-aluminium oxide, is known as corundum. When trace elements make it appear red it is known as ruby, but all other colorations fall under the designation sapphire. Corundum has a trigonal Bravais lattice with a space group of R-3c (number 167 in the International Tables). The primitive cell contains two formula units of aluminium oxide. The oxygen ions nearly form a hexagonal close-packed structure with aluminium ions filling two-thirds of the octahedral interstices.

ATLANTIC EQUIPMENT ENGINEERS
13 Foster Street, Bergenfield, NJ 07621
Phone: (800) 486-2436 or (201) 384-5606
FAX: 201-387-0291
http://www.micronmetals.com


Click on WWWebpro Logo for FREE
Marketing Help from the designers of this site.