Spectra of Coals and Coal Extracts: Ultraviolet-Visible Spectra of Carbon Disulfide Extracts

  • H. L. Retcofsky
  • R. A. Friedel


The study of solvent extracts of coals is one of the most commonly used methods for investigating coal structure. Such studies are particularly important in certain spectroscopic investigations, such as those involving ultraviolet—visible spectrophotometry and high-resolution nuclear magnetic resonance spectrometry, which are either extremely difficult or impossible to apply to solid samples, or, when applied, lead to questionable results. The Spectrometry Project at the Pittsburgh Coal Research Center is presently engaged in a comprehensive spectral study of the structure of coals and coal extracts. Among the spectroscopic techniques being utilized are infrared, Raman, ultraviolet—visible, nuclear magnetic resonance, electron spin resonance, and mass spectrometry. The present work is concerned with the ultraviolet—visible spectra of carbon disulfide extracts of selected coals.


Electron Spin Resonance Carbon Disulfide Ultraviolet Spectrum Coal Extract Solid Coal 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    C. Golumbic, J. B. Anderson, M. Orchin, and H. H. Storch, Bureau of Mines Report of Investigations 4662 (1950), p. 10.Google Scholar
  2. 2.
    R. A. Friedel, Nature 179, 1237 (1957).CrossRefGoogle Scholar
  3. 3.
    R. A. Friedel, Nature 101, 811 (1964).CrossRefGoogle Scholar
  4. 4.
    R. A. Friedel and J. A. Queiser, in: “Symposium on Spectroscopy,” ASTM Spec. Pub. No.(1959), p. 218–269Google Scholar
  5. 5.
    H. Tschamler and E. de Ruiter, in: “Chemistry of Coal Utilization,” Suppl. Vol. (H. H. Lowry, ed.), John Wiley and Sons, New York (1963), p. 48.Google Scholar
  6. 6.
    R. Raymond, I. Wender, and L. Reggel, Fuel 43, 299 (1964).Google Scholar
  7. 7.
    A. P. Oele, H. I. Waterman, M. L. Goedkoop, and D. W. van Krevelen, Fuel 30, 169 (1951).Google Scholar
  8. 8.
    S. Fujii, J. Fuel Soc. (Japan) 38, 384 (1959).Google Scholar
  9. 9.
    R. A. Friedel, Chem. & Ind. 1961, 462. (1974)Google Scholar
  10. 10.
    R. A. Friedel, in: “Proc. 4th Carbon Conf.,” Pergamon Press, London (1960), p. 321.Google Scholar
  11. 11.
    R. A. Friedel and M. Orchin, “Ultraviolet Spectra of Aromatic Compounds,” John Wiley and Sons, New York (1951).Google Scholar
  12. 12.
    R. A. Friedel and J. A. Queiser, Fuel 38, 369 (1959).Google Scholar

Copyright information

© Plenum Press, New York 1970

Authors and Affiliations

  • H. L. Retcofsky
    • 1
  • R. A. Friedel
    • 1
  1. 1.Pittsburgh Coal Research CenterUS Department of the Interior, Bureau of MinesPittsburghUSA

Personalised recommendations