Thermochemistry of С60 fullerene solutions in benzene, toluene, о-xylene, and о-dichlorobenzene at 298.15 K

Akhapkina, T.E.; Krusheva, M.A.; Соловьев, С. Н.; Firer, A. A.

doi:10.1134/s0036024417020029

Cited by 3 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Founded in this work values of standard enthalpies of C 60 dissolution in toluene, o-xylene and o-dichlorobenzene at temperatures of 288.15 K and 308.15 K are given in Table 2. Indeed, as can be seen from the Table 2 data for all three systems studied, there is a change in the sign of the standard dissolution enthalpy upon transition from a temperature of 288.15 K to a temperature of 308.15 K. In Table 3 the values of the standard thermodynamic characteristics of C 60 dissolution in toluene, o-xylene, o-dichlorobenzene at temperatures of 288.15 K and 308.15 K are shown; for ease of comparison and convincing data obtained for the temperature of 298.15 K, the results of the authors from [7] are shown. A hypothetical onemolar solution with the properties of an infinitely diluted one is taken as the standard state.…”

Section: Tablementioning

confidence: 83%

See 1 more Smart Citation

Thermochemistry of Fullerene C60 Solutions in Toluene, o-Xylene and o-Dichlorobenzene

et al. 2019

View full text Add to dashboard Cite

In hermetic highly sensitive calorimeter with an isothermal shell, the enthalpies of dissolution of fullerene C60 in toluene, o-xylene and o-dichlorobenzene were measured at temperatures of 288.15 K and 308.15 K at various concentrations of the dissolved substance. On the basis of the measured values and literature data, standard thermodynamic functions of the dissolution of C60 in the above mentioned solvents have been found at the indicated temperatures. The fact of the change in the sign of the dissolution enthalpy for all three systems under study at a transition to a temperature of 308.15 K has been revealed. A negative value of the dissolution entropy indicates the presence of a constant interaction in these liquid systems, which decreases sharply at 308.15 K.

show abstract

Section: Tablementioning

confidence: 83%

“…Earlier [7], authors have determined dissolution enthalpies of fullerene C 60 in these solvents at three or four solution concentrations and at a temperature of 298.15 K; their standard values were found as well. All determined values of dissolution enthalpies were exothermic.…”

mentioning

confidence: 87%

Thermochemistry of Fullerene C60 Solutions in Toluene, o-Xylene and o-Dichlorobenzene

et al. 2019

View full text Add to dashboard Cite

show abstract

Thermodynamic Characteristics of the Dissolution of Fullerene C60 in Benzene, Toluene, o-Xylene, o-Dichlorobenzene, and Carbon Disulfide at Different Temperatures

et al. 2020

View full text Add to dashboard Cite

The enthalpy of the fullerene C60 dissolution in carbon disulfide CS2 at 298.15 K was measured in a calorimeter with an isothermal shell. The value of the standard enthalpy of the fullerene C60 dissolution in this substance was found. Standard thermodynamic functions of fullerene C60 dissolution in benzene, chlorobenzene, bromobenzene, carbon disulfide, toluene, o-xylene, and o-dichlorobenzene at 298.15 K were determined based on the results of thermometric measurements and theoretical data. The standard thermodynamic functions have also been determined for toluene, o-xylene, and o-dichlorobenzene at temperatures of 288.15 and 308.15 K. The possible causes of the abnormal temperature dependence of the fullerene C60 solubility in some solvents, as well as sign changes in their dissolution enthalpies, in the temperature range of 288.15--308.15 K have been discussed

show abstract

Heat Capacity of Alcoholic (Isopropyl Alcohol) and Aqueous Alcoholic Solutions of Sodium Iodide Electrolyte Salt as a Function of Concentration

et al. 2021

View full text Add to dashboard Cite

The paper considers using a high-sensitivity calorimeter with an isothermal jacket to measure heat capacities of electrolyte salt solutions at the temperature of 298.15 K, the salt being sodium iodide NaI dissolved in isopropyl alcohol and in mixtures of isopropyl alcohol with water containing 10, 20, and 40 % water by mass, at various molalities of the electrolyte salt. We processed the apparent heat capacity values computed for the electrolyte salt by means of the ion association model, which assumes that there exists an equilibrium between ions and ion pairs of the same type in a solution. The association constant values obtained make it possible to predict the heat capacity values not measured empirically, which lie within the margin of error of the experimental values. The investigation shows that the apparent heat capacity of the electrolyte salt as a function of concentration is adequately described by the ion association model in a wide range of solution molalities

show abstract

Thermochemistry of С60 fullerene solutions in benzene, toluene, о-xylene, and о-dichlorobenzene at 298.15 K

Cited by 3 publications

References 6 publications

Thermochemistry of Fullerene C60 Solutions in Toluene, o-Xylene and o-Dichlorobenzene

Thermochemistry of Fullerene C60 Solutions in Toluene, o-Xylene and o-Dichlorobenzene

Thermodynamic Characteristics of the Dissolution of Fullerene C60 in Benzene, Toluene, o-Xylene, o-Dichlorobenzene, and Carbon Disulfide at Different Temperatures

Heat Capacity of Alcoholic (Isopropyl Alcohol) and Aqueous Alcoholic Solutions of Sodium Iodide Electrolyte Salt as a Function of Concentration

Contact Info

Product

Resources

About