Ireland Mine vitrain

The infrared spectra of the coal and the various extracts were recorded on a Baird, Model GY-1 (Ireland Mine vitrain concentrate) and on a Perkin Elmer Model 337 spectrophotometer (Bruceton coal). The samples were prepared by the potassium bromide pellet technique. The high resolution proton NMR spectrum of the benzene soluble extract from Ireland Mine vitrain concentrate was recorded on a Varian A-60 spectrometer in 10% deuterated chloroform (CDCh) solution, using tetrametnylsilane internal standard. 

The extract yields are shown in Table II. More than 90% of the organic coal substance was dissolved in the extraction of Ireland Mine vitrain concentrate and about 85% in the case of Bruceton coal. The yield of the phenanthrene soluble fraction was not determined in the extraction of Ireland Mine coal. In that run the products were worked up with a different procedure, and the phenanthrene soluble and phenanthrene insoluble fractions were not separated. 

Figure 3. NMR spectrum of benzene soluble fraction of Ireland Mine Vitrain...

Figure 7. Variable temperature ESR data for selected coals (V) peat, 61.2% C (w) lignite, 71.2% C (0) Adaville vitrain, 76.3% C. (A) Homestead Kentucky coal, 77.6% (o) Dorrance coal, 92.7% C (k) Ireland Mine Coal, 78.5% C, ( ) Pittsburgh vitrain, 82.6% C ( ) Lower Banner No. 2 vitrain, 86.1% C ( ) Pocohontas No. 3 vitrain, 90.0% C...

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