Results 171 to 180 of about 10,269 (215)
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Standard Sublimation Enthalpies of Erbium Trichloride, Tribromide, and Triiodide.
ChemInform, 2003The total vapor pressures of the erbium trihalides ErCl3, ErBr3, and ErI3 were measured by the torsion method, and their temperature dependences can be expressed by the following equations over the given temperature ranges: ErCl3(s), log(p/kPa) ) 12.04 ( 0.15 - (15159 ( 200)(K/T) from (880 to 1040) K; ErBr3(s), log(p/kPa) ) 11.09 ( 0.15 - (14256 ( 200)(
Brunetti, Bruno G. +2 more
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Enthalpies of sublimation of fullerenes by thermogravimetry
Thermochimica Acta, 2015Abstract The enthalpies of sublimation of fullerenes, as measured in the interval of 810–1170 K by thermogravimetry and applying the Langmuir equation, are reported. The detailed experimental procedure and its application to fullerenes C60, C70, C76, C78 and C84 are supplied.
Melchor Martínez-Herrera +3 more
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Recommended sublimation pressure and enthalpy of benzene
The Journal of Chemical Thermodynamics, 2014Abstract Recommended vapor pressures of solid benzene (CAS Registry Number: 71-43-2) which are consistent with thermodynamically related crystalline and ideal-gas heat capacities as well as with properties of the liquid phase at the triple point temperature (vapor pressure, enthalpy of vaporization) were established.
Květoslav Růžička +2 more
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Enthalpies of sublimation of transition metal complexes
Journal of the Chemical Society, Dalton Transactions, 1984Enthalpies of sublimation of a number of transition metal complexes have been determined by a differential Knudsen effusion technique in which the effusing vapour has been condensed on a quartz plate, the frequency of oscillation of which depends on the mass of complex deposited.
Philip M. Burkinshaw, Colin T. Mortimer
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Estimating Enthalpies of Sublimation of Hydrocarbons
1992A general technique for the estimation of sublimation enthalpies is described and applied to hydrocarbons. The vaporization enthalpy of a hydrocarbon is obtained by using a simple relationship based on the type and number of carbons present. Fusion enthalpies are estimated using a group additivity approach.
James S. Chickos +2 more
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Aerosol Volatility and Enthalpy of Sublimation of Carboxylic Acids
The Journal of Physical Chemistry A, 2010The enthalpy of sublimation has been determined for nine carboxylic acids, two cyclic (pinonic and pinic acid) and seven straight-chain dicarboxylic acids (C(4) to C(10)). The enthalpy of sublimation was determined from volatility measurements of nano aerosol particles using a volatility tandem differential mobility analyzer (VTDMA) set-up. Compared to
Kent, Salo +3 more
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Enthalpy of combustion, vapour pressures, and enthalpy of sublimation of 3-nitrophenol
The Journal of Chemical Thermodynamics, 1992Using a static-bomb combustion calorimeter, the standard ( p ° = 0.1 MPa) molar enthalpy of combustion at the temperature 298.15 K of 3-nitrophenol was determined: − Δ c H ° m (cr)/(kJ·mol −1 ) = 2870.0±1.5. The vapour pressure of the crystals was measured, as a function of the temperature T , by the Knudsen-effusion technique and the standard molar ...
Manuel A.V. Ribeiro da Silva +4 more
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Ferrocene: Temperature adjustments of sublimation and vaporization enthalpies
Fluid Phase Equilibria, 2018Abstract Knowledge of the vapor pressures and the sublimation/vaporization enthalpies of a metalorganic precursor can be indispensable for optimizing a deposition process. Unfortunately, published measurements of those values are often referred to a unique temperature, and comparing such studies requires adjusting the data to a common temperature. We
Kseniya V. Zherikova, Sergey P. Verevkin
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Sublimation enthalpy of eleven alkyl derivatives of urea
Thermochimica Acta, 1990Abstract Sublimation enthalpies of eleven alkyl dervatives of urea (monomethylurea, monoethyl-urea, monopropylurea, monoisopropylurea, monoisobutylurea, mono- t -butylurea, 1,1-dimethylurea, 1,3-dimethylurea, 1,3-diethylurea, 1,3-dibutylurea and 1,1,3-trimethylurea) were determined from second-law treatment of vapour pressures measured by the torsion-
V. Piacente, D. Ferro, G.Della Gatta
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Determination of the enthalpy of ammonia borane sublimation
Russian Journal of General Chemistry, 2014BH3NH3(solid) = 1/n(BH2NH2)n(solid) + H2(gas). Decomposition of ammonia borane in a condensed phase was studied by differential scanning calorimetry [2–4] and thermogravimetry [5]. Publications on the study of ammonia borane behavior in gas phase are few in number. The structure of its molecule was determined by the rotation spectroscopy method [6, 7].
A. V. Butlak +2 more
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