Results 261 to 270 of about 41,155 (321)

Determination of the enthalpy of fusion of Na3FSO4

Thermochimica Acta, 1991
The areas of the fusion and crystallization peaks of Na3FeF6 and of four calibration substances (KCl, NaCl, Na2SO4, and K2SO4) were measured using the DSC mode of a high-temperature calorimeter. Using the measured quantities and known values of the enthalpy of fusion of the calibration substances, the enthalpy of fusion of Na3FeF6 was determined.
K. Adamkovičová, P. Fellner, L. Kosa, P. Lazor, I. Nerád, I. Proks   +5 more
openaire   +2 more sources

Critical assessment of the enthalpy of fusion of metals used as enthalpy standards at moderate to high temperatures

Thermochimica Acta, 1999
S. Stølen, F. Grønvold
exaly   +2 more sources

Calculation of the fusion enthalpy temperature dependence of polyaromatic hydrocarbons from the molecular structure: Old and new approaches

, 2021
Experimental determination of the phase transition enthalpies temperature dependences requires measurement of the transition enthalpies or the heat capacities of the final and initial states in the temperature range of interest.
M. I. Yagofarov, B. Solomonov
semanticscholar   +1 more source

Phase Transition Enthalpy Measurements of Organic and Organometallic Compounds. Sublimation, Vaporization and Fusion Enthalpies From 1880 to 2015. Part 1. C1− C10

Journal of Physical and Chemical Reference Data, 2016
William E Acree, James S Chickos
exaly   +2 more sources

Determination of vapor pressures, enthalpies of sublimation, and enthalpies of fusion of benzenetriols

Thermochimica Acta, 2004
Molar enthalpies of sublimation of 1,2,4-, 1,2,3-, and 1,3,5-tri-hydroxy-benzene, were obtained from the temperature dependence of the vapor pressure measured by the transpiration method. The molar enthalpies of fusion and molar heat capacities of these compounds were measured by DSC.
Sergey P Verevkin, Christoph Schick
openaire   +1 more source

Fusion enthalpy and entropy of syndiotactic polystyrene

Polymer, 1990
Abstract The fusion enthalpy and entropy of a highly syndiotactic polystyrene sample were determined by melting point depression in the presence of diluents. Three solvents were used to ascertain the presence, if any, of polymorphic modifications: dioctyl phthalate, diphenylsulphone and diphenyldiketone (benzil).
G. Gianotti, A. Valvassori
openaire   +1 more source

Enthalpies of fusion and enthalpies of solvation of aromatic hydrocarbons derivatives: Estimation of sublimation enthalpies at 298.15 K

Thermochimica Acta, 2016
© 2016 Elsevier B.V. All rights reserved.Enthalpy of sublimation of solid compound can be found using the values of solution enthalpy and solvation enthalpy in any solvent. In this work enthalpies of solution at infinite dilution of a number of aromatic hydrocarbons derivatives in benzene were measured at 298.15 K.
Solomonov B., Nagrimanov R., Varfolomeev M., Buzyurov A., Mukhametzyanov T.   +4 more
openaire   +3 more sources

The enthalpy of fusion of irradiated polyethylene crystals

Journal of Polymer Science Part B: Polymer Letters, 1969
A. M. Rijke, L. Mandelkern
openaire   +2 more sources

Determination of the enthalpy of fusion of K3NbO2F4

Chemical Papers, 2011
AbstractAreas of fusion and crystallization peaks of K3NbO2F4 were measured using the DCS mode of a high-temperature calorimeter (SETARAM 1800 K). On the basis of these quantities, considering the temperature dependence of the calorimeter sensitivity, the value of the fusion enthalpy of K3NbO2F4 of (98 ± 6) kJ mol−1 was determined at the fusion ...
Ladislav Kosa, Iveta Macková
openaire   +1 more source

Fusion enthalpy and entropy of isotactic polypropylene

European Polymer Journal, 1968
Abstract The “equilibrium melting temperature” of isotactic polypropylene and of a number of its mixtures with hexadecane, α-chloronaphthalene, decalin and naphthalene is determined by extrapolation of several experimental melting temperature data obtained by rapid melting of each sample isothermally crystallized at different temperatures.
F. Danusso, G. Gianotti
openaire   +1 more source