Strontium

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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

• strontium-90 [90]Sr

Introduction

• From Strontian, the town in Scotland where it was discovered. Discovered by Irish scientist Adair Crawford in 1790.

Occurrence

• obtained from ores celestite & strontianite
• occurs only in combined form
• several radioactive isotopes, including Sr-90

Characteristics

• silvery-yellow, soft malleable ductile metallic element
• forms divalent cation Sr+2

• metabolized in the body much like Ca+2
• Sr+2 can replace Ca+2 in bone tissue (see Sr-90 & strontium ranelate)

Uses

• color TV tubes
• crimson fireworks
• production of some ferrites
• radiopharmaceutical (strontium-89)

More General Terms

• alkaline earth metal
• trace element
• metabolic agent (metabolic modifier)

Additional Terms

• periodic table
• strontium ranelate (Protelos)

Internet Database

PubChem: 23955
PubChem: 104798

References

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

strontium [Sr]