Lithium oxide

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A caustic white powder that absorbs Carbon dioxide and water from air. Lithium oxide is used in the manufacture of ceramics and glass. At high temperatures, a solution of lithium oxide will attack Glass, Silica, and many metals.

Synonyms and Related Terms


Composition Li2O
CAS 12057-24-8
Melting Point 1570
Density 2.013
Molecular Weight mol. wt. = 29.88
Refractive Index 1.644

Hazards and Safety

Corrosive to skin, eyes and membranes


  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5564
  • CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index = 1.644

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