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Magnetic Susceptibility Measurements of Solid Manganese Compounds with Evan's Balance

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Z. S. Teweldemedhin , R. L. Fuller and M. Greenblatt

Department of Chemistry, Rutgers the State University of New Jersey, Piscataway, N. J. 08855-0939

J. Chem. Educ., 1996, 73 (9), p 906

DOI: 10.1021/ed073p906

Publication Date (Web): September 1, 1996

Abstract

An experiment on the determination of the magnetic susceptibility of several solid manganese compounds including KMnO₄, MnO, MnTiO₃, alpha-Mn₂O₃ and MnO₂ with a simple, commercially available magnetic susceptibility balance (Johnson matthey) is described. The experiment is appropriate for a junior/senior level undergraduate inorganic or physical chemistry laboratory. The fundamental principles of magnetism and magnetic interactions in solids are introduced. The study of the magnetic susceptibility of the series of manganese oxides, with different formal oxidations states of the Mn ions in each, illustrates how the number of unpaired electrons and evidence of magnetic interactions may be determined from the magnetic data.

Keywords (Audience):

Graduate Education / Research

Keywords (Domain):

Inorganic Chemistry

Keywords (Subject):

Manganese

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

⁷Li NMR Studies on Complexation Reactions of Lithium Ion with Cryptand C211 in Ionic Liquids: Comparison with Corresponding Reactions in Nonaqueous Solvents
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- ⁷Li NMR Studies on Complexation Reactions of Lithium Ion with Cryptand C211 in Ionic Liquids: Comparison with Corresponding Reactions in Nonaqueous Solvents
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  7Li NMR spectra of DEME-TFSA [DEME = N,N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium; TFSA = bis(trifluoromethanesulfonyl)amide], EMI-TFSA (EMI = 1-ethyl-3-methylimidazolium), MPP-TFSA (MPP = N-methyl-N-propylpyridinium), DEME-PFSA [PFSA = bis(...
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Variable Temperature Equipment for a Commercial Magnetic Susceptibility Balance
Albert Lötz
Journal of Chemical Education2008 85 (1), 107
- Variable Temperature Equipment for a Commercial Magnetic Susceptibility Balance
  Albert Lötz
  Journal of Chemical Education2008 85 (1), 107
  Variable temperature equipment for the magnetic susceptibility balance MSB-MK1 of Sherwood Scientific, Ltd., is described. The sample temperature is controlled with streaming air heated by water in a heat exchanger. Whereas the balance as sold ...
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Received: August 03, 2009

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Magnetic Susceptibility Measurements of Solid Manganese Compounds with Evan's Balance