Aluminum

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Contents 1 More Specific Terms 2 Introduction 3 Occurrence 4 Characteristics 5 Uses 6 More General Terms 7 Additional Terms 8 Internet Database 9 References

More Specific Terms

• yttrium aluminum garnet (YAG)

Introduction

• From the Latin alumen meaning alum. Discovered in 1825 by Danish chemist Hans Christian Oersted

Occurrence

• the most abundant metal in the earth's crust,
• always occurs in combination with other elements
• nearly all of the world's aluminum is obtained by isolation from aluminum oxide ( Al2O3), derived from bauxite ore

Characteristics

• blueish silver-white malleable ductile light trivalent metallic element with:

• good electrical & thermal conductivity
• high reflectivity ( radiation)

• resistance to oxidation derives from thin, transparent coating of aluminum oxide

Uses

• used to make cans, kegs, wrapping foil & household utensils
• manufacture of motor vehicles
• aircraft
• construction

More General Terms

• chemical element
• metal

Additional Terms

• Al+3 (aluminum ion)
• periodic table

Internet Database

PubChem: 14488

References

1. Webster's Ninth New Collegiate Dictionary, Miriam- Webster Inc. Springfield, MA 1990
2. Chemical & Engineering News, Sept 8, 2003

aluminum [Al]