Polynuclear Aromatic Compounds in Coal

Polynuclear Aromatic Compounds in Coal

IN a recent communication, Friedel 1 compared the specific extinction coefficients of coal at two wave-lengths with those of various polynuclear aromatics and found the values for coal (a Pittsburgh vitrain containing 84 per cent carbon) 30–40 times lower than those for the model substances. From th...

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Veröffentlicht in:Nature (London) 1958-03, Vol.181 (4609), p.640-641
Hauptverfasser: VAN KREVELEN, D. W., GROENEWEGE, M. P., RIETVELD, B. J.
Format: Artikel
Sprache:eng
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Humanities and Social Sciences
letter
multidisciplinary
Science
Science (multidisciplinary)
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Zusammenfassung:IN a recent communication, Friedel 1 compared the specific extinction coefficients of coal at two wave-lengths with those of various polynuclear aromatics and found the values for coal (a Pittsburgh vitrain containing 84 per cent carbon) 30–40 times lower than those for the model substances. From these data Friedel concluded that the concentration of polynuclear condensed aromatics in coal is low.
ISSN:0028-0836
1476-4687
DOI:10.1038/181640a0