Thermochemistry on dodecylamine hydrochloride and bis-dodecylammonium tetrachlorozincate

Liu, Y. P.; Di, You-Ying; Dan, Wenyan; He, Dajiang; Kong, Yali; Yang, Wei-Wei

doi:10.1007/s10973-010-1085-1

Cited by 8 publications

(1 citation statement)

References 17 publications

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“…The principle and structure of the calorimeter were described in detail elsewhere [9,12]. The reliability of the calorimeter was verified previously by measuring dissolution enthalpy of KCl (calorimetrically primary standard) in double-distilled water at T = 298.15 K. Relative deviation of the experimental result compared with corresponding published standard data was within ±0.30 % [13].…”

Section: Isoperibol Solution-reaction Calorimetrymentioning

confidence: 93%

Low-temperature heat capacities and standard molar enthalpy of formation of 2-pyrazinecarboxylate cupric(II) complex Cu(pyza)2(H2O)2

Kong

Gao

et al. 2015

J Therm Anal Calorim

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2-Pyrazinecarboxylate cupric (II) complex Cu(pyza) 2 (H 2 O) 2 (s) was synthesized by the method of liquid phase synthesis. The composition and structure of the compound were characterized by chemical and elemental analyses and X-ray crystallography. Low-temperature heat capacities of the compound were measured by a precision automated adiabatic calorimeter over the temperature range from 78 to 400 K. A polynomial equation of the heat capacities as a function of the temperature was fitted by the least-square method. The smoothed heat capacities and the thermodynamic functions of the compound relative to 298.15 K were calculated and tabulated at an interval of 5 K. In accordance with Hess' law, a thermochemical cycle was designed, the enthalpy change in the reaction of 2-pyrazinecarboxylic acid with cupric acetate monohydrate was determined by the use of an isoperibol solution-reaction calorimeter, and the standard molar enthalpy of formation of the complex was calculated to be 2(1191.282 ± 2.457) kJ mol -1 by the use of the dissolution enthalpies and other auxiliary thermodynamic quantities.

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Section: Isoperibol Solution-reaction Calorimetrymentioning

confidence: 93%