Results 281 to 290 of about 40,153 (337)
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Direct measurement of the enthalpy of fusion of diopside
Geochimica et Cosmochimica Acta, 1986Crystalline 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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Enthalpy of fusion and cryoscopic constant for ethylene carbonate
The Journal of Chemical Thermodynamics, 1975Abstract Because of a discrepancy in the literature, the enthalpy of fusion of ethylene carbonate has been redetermined. The value obtained is (35.80 ± 0.20) cal th g −1 which leads to (5.32 ± 0.03) K kg mol −1 for the molar frezing-temperature-depression constant.
Thompson, Peter T. +2 more
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ChemInform Abstract: Determination of Enthalpy of Fusion of K3FSO4
ChemInform, 1993AbstractChemInform 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 +4 more
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Estimate of Enthalpies of Formation and Fusion of Cordierite
Journal of the American Ceramic Society, 1973The 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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Estimating entropies and enthalpies of fusion of organic compounds
The Journal of Organic Chemistry, 1991A group additivity method recently reported for estimating fusion entropies and fusion enthalpies of hydrocarbons is expanded to include both mono- and multisubstituted derivatives as well. The parameters are derived from experimental fusion enthalpies of 191 hydrocarbons and 225 monosubstituted and 233 multisubstituted hydrocarbon derivatives.
James S. Chickos +3 more
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Heat capacity and enthalpy of fusion of penconazole (C13H15Cl2N3)
Thermochimica Acta, 2004Abstract Low-temperature heat capacities of penconazole (C 13 H 15 Cl 2 N 3 ) were precisely measured with an automated adiabatic calorimeter over the temperature rang from 78 to 364 K. The sample was observed to melt at 332.38±0.06 K. The molar enthalpy and entropy of fusion of the compound were determined to be 33580±11 J mol −1 , 101.03±0.02 J mol
Xiao-Hong Sun +6 more
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ENTHALPY AND ENTROPY OF FUSION OF ISOTACTIC POLYSTYRENE
1967ABSTRACT The enthalpy of fusion Δ H u of isotactic polystyrene, determined from measurements of the depression of the melting point of the polymer in the presence of diluents by the dilatometric method at equilibrium, was 2150 cal/structural unit (±100).
F. DANUSSO, G. MORAGLIO
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Enthalpies of Fusion and Transition of Organic Compounds
1995The temperatures and the enthalpies of both solid-solid and solid-liquid phase transition were collected from the original literature published from the end of the last century to early 1995. All the values were critically evaluated to provide recommended values in the cases where several experimental values were reported for the same phase transition.
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Enthalpy of fusion and cryoscopic constant of N-methylacetamide
The Journal of Chemical Thermodynamics, 1969Abstract In view of a discrepancy in the literature, the enthalpy of fusion of N-methylacetamide has been redetermined. The value obtained is (31.78±0.16) cal g−1. The cryoscopic constant calculated from this result is (5.77±0.02) K kg mol−1.
R.W. Kreis, R.H. Wood
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The enthalpy of transition and the enthalpy of fusion of silver sulfate
The Journal of Chemical Thermodynamics, 1978B.R Conard, T.B McAneney, R Sridhar
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