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A Method for the Determination of Aromatics in Hydrocarbon Mixtures

Description: Bulletin discusses a method to estimate aromatic hydrocarbons in hydrocarbon mixtures, which is important for determining the percentage of aromatics in fuel blends. The method was tested with nine base stocks at several levels of aromatics concentration and the maximum level of error was found to be about 0.5 percent. The speed and simplicity of the testing is emphasized.
Date: December 1945
Creator: Hipsher, Harold F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Synthesis and Purification of Aromatic Hydrocarbons 1: Butylbenzene

Description: "A 13-gallon quantity of butylbenzene was synthesized and purified by large-scale preparation of 4-phenyl-1-butene from benzyl-magnesium chloride and allyl chloride with subsequent hydrogenation of the olefin. The physical constants for pure samples of 4-phenyl-1-butene and butylbenzene were determined and the position of the double bond in the olefin was established" (p. 1).
Date: January 1946
Creator: Karabinos, Joseph V. & Lamberti, Joseph M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Synthesis and Purification of Aromatic Hydrocarbons 3: Isobutylbenzene, Sec-Butylebenzene and Tert-Butylbenzene

Description: Note presenting a description of the synthesis of isobutylbenzene, sec-butylbenzene, and tert-butylbenzene in 11-gallon quantities. The physical properties are tabulated and freezing curves are plotted for the five hydrocarbons.
Date: June 1946
Creator: Buess, C. M.; Karabinos, J. V.; Kunz, P. V. & Gibbons, L. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Synthesis and Purification of Aromatic Hydrocarbons 4: 1,2,3-Trimethylbenzene

Description: "A six gallon quantity of 1,2,3-trimethylbenezene was prepared and purified in a four-step synthesis involving the condensation of 1,3-pentadiene with crotonaldehyde. The dimethylcyclohexencarboxaldehydes formed were hydrogenated to give the corresponding isomeric dimethylcyclohexylcarbinols. The dehydration of the carbinols and the subsequent dehydrogenation of the trimethylcyclohexenes yielded the 1,2,3-trimethylbenzene. The overall yield was 24 percent; the physical properties of the materia… more
Date: November 1946
Creator: Lamberti, J. M.; Reynolds, T. W. & Chanan, H. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electronic Spectra of Catacondensed and Pericondensed Aromatic Hydrocarbons

Description: From abstract: "The electronic spectra arising from the excitations of pi-electrons in homo-nuclear conjugated bond systems are calculated for 37 aromatic hydrocarbons. The theoretical approach used takes into account overlap effects between different a atoms, correlation between different electrons, variations in internuclear distances, and the influence of non-conjugated neighbors, hydrogen and carbon. Four types of approximations are carried trough for the molecules in order to obtain an est… more
Date: June 21, 1962
Creator: Hummel, Richard L. & Ruedenberg, Klaus, 1920-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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