Results 271 to 280 of about 40,186 (336)

The Enthalpy of Fusion of Gallium

Journal of Chemical & Engineering Data, 2002
An adiabatic calorimeter was used to measure the enthalpy of fusion of a very pure sample of gallium. The new value of the enthalpy of fusion was determined to be ΔfusH = 80.097 ± 0.032 J·g-1, where the uncertainty corresponded to a 95% confidence interval. A comparison with previous determinations is made.
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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
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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
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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
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Estimating entropies and enthalpies of fusion of hydrocarbons

The Journal of Organic Chemistry, 1990
A group additivity method for estimating fusion entropies and fusion enthalpies is described. The method is based on experimental fusion enthalpies of 191 hydrocarbons. Group values are provided for most structural environments. Applications of the technique are described, and comparisons with literature values and other estimation techniques are also ...
James S. Chickos, Donald G. Hesse, Joel F. Liebman   +2 more
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Heat Capacity and Enthalpy of Fusion of Fenoxycarb

Chinese Journal of Chemistry, 2005
AbstractFenoxycarb was synthesized and its heat capacities were precisely measured with an automated adiabatic calorimeter over the temperature range from 79 to 360 K. The sample was observed to melt at (326.31±0.14) K. The molar enthalpy and entropy of fusion as well as the chemical purity of the compound were determined to be (26.98±0.04) kJ·mol‐1 ...
Sun Xiao‐Hong, Liu Yuan‐Fa, Tan Zhi‐Cheng, Jia Ying‐Qi, Yang Jian‐Wu, Wang Mei‐Han   +5 more
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Heat capacities and enthalpies of fusion of lithium and rubidium nitrates: Heat capacities, enthalpies of fusion and enthalpies of formation of the intermediate compounds Ag0.5Rb0.5NO3 and Li0.5Rb0.5NO3

Thermochimica Acta, 2013
a b s t r a c t Due to the numerous applications of the alkali nitrate–silver nitrate systems (chemical processes, metallurgical research, transfers of thermal energy produced from solar radiation, etc.), the thermochemical properties and the phase diagram are important sources of information for a better exploitation of these systems.
Hichri Monia, Zamali Hmida, Khattech Ismail   +2 more
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Direct measurement of the enthalpy of fusion of diopside

Geochimica et Cosmochimica Acta, 1986
Crystalline diopside, CaMgSi2O6, was dropped directly into a Setaram “HT1500” calorimeter operating at high temperature. At 1575 < T < 1624 K, the heat content of the crystals was in excellent agreement with previously published results. Above 1634 K, a rise in the enthalpy was seen, supporting the incongruent melting reported by Kushiro.
David Ziegler, Alexandra Navrotsky
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ChemInform Abstract: Determination of Enthalpy of Fusion of K3FSO4

ChemInform, 1993
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
K. ADAMKOVICOVA, L. KOSA, I. NERAD, I. PROKS, P. FELLNER   +4 more
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Estimate of Enthalpies of Formation and Fusion of Cordierite

Journal of the American Ceramic Society, 1973
The enthalpies of solution in molten 2PbO·B 2 O 3 at 690°±2°C of cordierite, Mg 2 Al 4 Si 5 O 18
A. NAVROTSKY, O. J. KLEPPA
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