alumina Definition
a white or nearly colorless, crystalline substance, aluminum oxide, Al2O3, occurring naturally as the mineral corundum and used in the production of aluminum and its compounds, abrasives, glass, ceramics, and refractory materials.
Using alumina: Examples
Take a moment to familiarize yourself with how "alumina" can be used in various situations through the following examples!
Example
Alumina is a key ingredient in the production of aluminum.
Example
The ceramic industry uses alumina to make high-performance components.
Example
Alumina is also used as an abrasive in sandpaper and grinding wheels.
Phrases with alumina
Example
Activated alumina is used in the purification of natural gas and other industrial gases.
Example
The alumina refinery is a major employer in the region.
high-purity alumina
alumina with a purity level of 99.99% or higher, used in the production of semiconductors, synthetic sapphires, and other high-tech applications
Example
High-purity alumina is used in the manufacture of LED lights and other electronic devices.
Summary: alumina in Brief
'Alumina' [uh-loo-muh-nuh] is a white or nearly colorless, crystalline substance, aluminum oxide, Al2O3, used in the production of aluminum and its compounds, abrasives, glass, ceramics, and refractory materials. It is also used as a desiccant, catalyst, and adsorbent. Phrases like 'activated alumina,' 'alumina refinery,' and 'high-purity alumina' denote specific applications of alumina in various industries.
