Abstract
A study of solvent-extractable metal salts of carboxylic acids from Colorado Green River oil shale is presented. Sodium was found to be the most abundant cation present in these acid metal salts. Identification of individual components is based on combined gas Chromatographic and mass spectrometric results obtained for their respective volatile methyl esters. Normal acid salts (C 11 to C 34), isoprenoid acid salts (C 15 to C 17, C 19 to C 22), nonisoprenoid branched acid salts (C 14 to C 19), terpenoid acid salts (C 30 to C 32), and α,ω-dicarboxylic acid salts (C 11 to C 29) were identified. Small concentrations of cyclohexyl acid salts and aromatic acid salts were also found. The high even-odd predominance for the distribution of normal acid salts indicates a mild thermal history for Green River oil shale. Some acid salts (45.6 wt%) were not identified because of nonvolatility of their methyl esters.
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