World Library  
Flag as Inappropriate
Email this Article

Vanadium(III) oxide

Article Id: WHEBN0005048115
Reproduction Date:

Title: Vanadium(III) oxide  
Author: World Heritage Encyclopedia
Language: English
Subject: Vanadium(IV) oxide, Oxides, Vanadium compounds, Sesquioxides, Vanadium carbide
Collection: Hematite Group, Oxides, Sesquioxides, Vanadium Compounds
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Vanadium(III) oxide

Vanadium(III) oxide
Vanadium trioxide
Names
Other names
Vanadium sesquioxide, Vanadic oxide
Identifiers
 Y
PubChem
RTECS number YW3050000
Properties
V2O3
Molar mass 149.881 g/mol
Appearance Black powder
Density 4.87 g/cm3
Melting point 1,940 °C (3,520 °F; 2,210 K)
Solubility in other solvents Insoluble
Structure
Trigonal (karelianite), hR30
R-3c h, No. 167
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
 Y  (: Y/N?)

Vanadium(III) oxide is the 5O2V with hydrogen or carbon monoxide.[1][2]It is a basic oxide dissolving in acids to give solutions of vanadium(III) complexes.[2] V2O3 has the corundum structure.[2] It is antiferromagnetic with a critical temperature of 160 K. [3] At this temperature there is an abrupt change in conductivity from metallic to insulating.[3]

Upon exposure to air it gradually converts into indigo-blue V2O4.[3]

In nature it occurs as the very rare mineral karelianite.

References

  1. ^ Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 1267.
  2. ^ a b c  
  3. ^ a b c E.M. Page, S.A.Wass (1994),Vanadium:Inorganic and Coordination chemistry, Encyclopedia of Inorganic Chemistry, John Wiley & Sons, ISBN 0-471-93620-0
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.