Thermochemical investigations of the methanol isopropanol system
"Heats of solution and partial molar excess volumes at infinite dilution were determined for n-butanol, acetone, chloroform, and water in pure methanol, pure isopropanol, and several mixtures of the two at 25.0⁰C. The partial molar excess enthalpies of methanol and isopropanol were also determined and were combined to obtain integral heats of mixing. All heat data were obtained using a calorimeter of the heat-leak design, containing approximately 300 ml of solvent. Sample sizes ranged for 0.1 to 8 ml. Individual heat measurements were reproducible to 0.05 calories and reported values are considered to be accurate to 1% + 0.5 calorie per mole. Dilatometers of approximately 50 ml capacity were used for volumetric measurements. Sample sizes ranged from 0.1 to 1 ml. The volumetric measurements are considered to be accurate to 1% + 0.02 ml. The heat of mixing of methanol - isopropanol is exothermic with a minimum of -19.0 calories per mole at 0.6 mole fraction isopropanol. All heats of solution and partial molar volumes showed negative deviations from the mole fraction average of the values obtained in the pure solvents. Heats of solution were combined with excess volumes to obtain values for Ev as a function of solvent composition"--Abstract, page iii.
Bertrand, Gary L.
Roach, D. Vincent
Mayhan, Kenneth G.
M.S. in Chemistry
University of Missouri Research Board
University of Missouri--Rolla
viii, 65 pages
© 1969 Elmer Lee Taylor, All rights reserved.
Thesis - Open Access
Library of Congress Subject Headings
Heat of solution
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Link to Catalog Record
Taylor, Elmer Lee, "Thermochemical investigations of the methanol-isopropanol system" (1969). Masters Theses. 5297.