Enthalpies of dissolution of C60 and C70 in o-xylene, toluene, and CS2 at temperatures from 293.15 K to 313.15 K
نویسندگان
چکیده
Enthalpies of dissolution of C60 and C70 in o-xylene, toluene, and CS2 have been measured by a Calvet MS-80 microcalorimeter at temperatures from 293.15 K to 313.15 K. It was observed that the dissolution of C60 in the three organic solvents in the above range of temperatures was exothermic, while the dissolution of C70 in the same three solvents was endothermic. The enthalpy of dissolution of C70 showed a minimum at 308.15 K. The experimental results were discussed. 7 1996 Academic Press Limited
منابع مشابه
Measurement of Volumetric and Viscometric Properties of Binary Mixtures of Methyl Tert-butyl Ether (MTBE) + 1-Alcohol from 293.15 to 308.15 K and at Atmospheric Pressure
Densities and viscosities of binary mixtures of methyl tert-butyl ether (MTBE) with 1-alkanols include 1-butanol, or +1-pentanol, or +1-hexanol, or +1-heptanol were measured as a function of composition from 293.15 to 308.15 K at atmospheric pressure. The temperatures studied were 293.15, 298.15, 303.15 and 308.15 K. The experimental results have been used to calculate the viscosity de...
متن کاملSynthesis and complexation study of new ExTTF-based hosts for fullerenes.
A new series of exTTF hosts has been synthesized for supramolecular binding study of fullerenes C60 and C70. Binding constants for C60 in chlorobenzene, toluene, toluene-CH2Cl2 and CS2 have been calculated for different hosts and a direct structure-affinity relationship has been established. As predicted, receptors with two exTTF moieties (1, 3 and 4) have demonstrated higher binding abilities ...
متن کاملConvenient separation of high-purity C60 from crude fullerene extract by selective complexation with AlCl3.
A purification procedure for C60 from the fullerene extract has been developed using the differential complexation of C60 and C70 with AlCl3 (or its conjugate acid) in CS2 solution. In addition to pure C60 (>99.8%), the procedure also provides C70-enriched fullerene mixture.
متن کاملSolubility of Cis, Cis-Muconic Acid in Various Polar Solvents from 298.15 K to 348.15 K
The present work concerns with an investigation on the solubility of cis,cis-muconic acid dissolution in different polar solvents by characterizing and modeling the dissolution as a function of temperature. Water, ethanol, 2-propanol and acetic acid have been investigated as solvents in the range temperatures from a 298.15 to 348.15 K. Owing to the absence of cis,cis-muconic acid solubility...
متن کاملExperimental and Theoretical Study of Phase Equilibria in Aqueous Mixtures of Lactic Acid with Benzyl Alcohol and p-Xylene at Various Temperatures
Liquid-liquid equilibria for the (water + lactic acid + benzyl alcohol or p-xylene) ternary systems were investigated at atmospheric pressure and in the temperature range from 298.15-318.15 K. The studied systems exhibit two types of liquid-liquid equilibrium (LLE) behavior. The system consisting of benzyl alcohol displays type-1 LLE behavior, while a type-2 behavior is exhibited by th...
متن کامل