Heats of solution/substitution in TlNO3 and RbNO3 crystals from heats of transition. The complete phase diagram of the TlNO3–RbNO3 system

Autor:	Richard A. Secco, E. A. Secco
Rok vydání:	1999
Předmět:	Crystal Lattice energy Differential scanning calorimetry Chemistry Phase (matter) Enthalpy Substitution (logic) General Physics and Astronomy Thermodynamics Physical and Theoretical Chemistry Phase diagram Dilution
Zdroj:	Physical Chemistry Chemical Physics. 1:5011-5016
ISSN:	1463-9084 1463-9076
DOI:	10.1039/a906674h
Popis:	From measurements of the decrease in the heat (enthalpy) of transition in the solid phase by differential scanning calorimetry, the partial molar heats of solution at infinite dilution, χ, and the heats of solution or substitution, ΔHs°, of Tl+ in RbNO3 crystal and Rb+ in TlNO3 crystal along with their recovered lattice energies, ΔHL°, are reported. The complete phase diagram of the TlNO3–RbNO3 system with details of the sub-solidus regions is reported. The properties of a “mixed crystal’' or “crystalline solid solution’' of Tl(1-x)RbxNO3, viz., structure, transition temperatures, melting temperature, etc., are presented and discussed.
Databáze:	OpenAIRE
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