Journal ArticleDOI
Thermodynamic Properties of the Aqueous Ba2+ Ion and the Key Compounds of Barium
TLDR
In this paper, the aqueous ion of barium, Ba2+, was given at 298.15 K in SI units and the recommended thermochemical property values, Δf H°, Δ f G° and S° for Ba2+ were given.Abstract:
Recommended thermochemical property values, Δf H°, Δf G° and S° for the aqueous ion of barium, Ba2+, are given at 298.15 K in SI units. The values are: Δf H°=534.64±1.80 kJ⋅mol−1, Δf G°=−557.60±1.81 kJ⋅mol−1 and S°=8.80±0.50 J⋅K−1 mol−1. They are consistent with the CODATA Key Values for Thermodynamics. The evaluation involves the analysis of the enthalpy changes, Gibbs energy changes, and the entropy measurements for all key substances in the key network. A consistent set of thermochemical property values is given for BaO(cr), BaH2(cr), BaCl2(cr), BaCl2⋅2H2O(cr), Ba(NO3)2(cr), and BaCO3(cr,witherite), as well as reconstituted recommended process values with uncertainties for reactions involving these substances.read more
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Journal ArticleDOI
Water activities, activity coefficients and solubility in the binary and ternary aqueous solutions LiCl+Y Cl2+H2O with Y≡Mg2+;Ca2+;orBa2+
TL;DR: In this paper, the ternary aqueous solutions of lithium chloride with alkaline earth metal {yLiCl+(1−y)Y Cl2}(aq) with Y Mg2+, Ca2+; and Ba2+ have been studied using the hygrometric method at 29815 K The water activities are measured at total molalities from 020−mol kg−1 to saturation for different ionic-strength fractions y of LiCl with y = 020, 050 and 080 The obtained data allow the deduction of osmotic coefficients from
Book ChapterDOI
Chapter 190 Phase diagrams and thermodynamic properties
Pavel Karen,Arne Kjekshus +1 more
TL;DR: In this paper, the phase diagrams and thermodynamic data for selected cuprates of alkaline-earth (A) and rare earth (R) elements except Sc, along with the binary to quintenary oxides, and relevant solid-solution series with other elements.
Journal ArticleDOI
Phase Stability, Phase Mixing and Phase Separation in Fluorinated Alkaline Earth Hydrides
TL;DR: In this paper, the structural stability, electronic structure, and chemical bonding of AH2 and fluorinated AH2 (AH2-xFx) are delineated using ab initio calculations.
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