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January 1997

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Subject:
Use of the term "alumina"
From:
[log in to unmask] (DAVY.J.G-)
Date:
Fri, 3 Jan 1997 09:41:52 -0500
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     For what it's worth, the term "alumina" is used to refer to the 
     compound aluminum oxide.  This is one case of many in which the name 
     of the oxide of a metal whose name ends in "-um" is created by 
     replacing the "-um" with "-a".  (Other examples: zirconium oxide is 
     referred to as zirconia and beryllium oxide as beryllia.)  To say 
     "alumina oxide" is therefore redundant.
     
     Gordon Davy

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