Thermodynamic properties of vapor complex Na2ZrCl6

Thermodynamic studies were carried out for the vapor complex of sodium chloride with zirconium tetrachloride at 718-778 K and 0.5-2.5 kPa by using high temperature phase equilibrium-quenching experiments, taking closed Pyrex glass ampoules as the reaction containers. The results show that the sole p...

Full description

Saved in:
Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2007-04, Vol.17 (2), p.439-442
Main Author: 李军丽 于锦 杨冬梅 王之昌
Format: Article
Language:English
Subjects:
Na2ZrCl6
气态配合物
热力学性质
相平衡
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Thermodynamic studies were carried out for the vapor complex of sodium chloride with zirconium tetrachloride at 718-778 K and 0.5-2.5 kPa by using high temperature phase equilibrium-quenching experiments, taking closed Pyrex glass ampoules as the reaction containers. The results show that the sole predominant vapor complex is Na2ZrCl6 for the ZrCl4-NaCl system under the experimental conditions. The thermodynamic equilibrium constants and other thermodynamic functions of the reaction 2NaCl（s）＋ZrCl4（g）=Na2ZrCl6（g） have been derived from the measurements. The results for the changes in enthalpy and entropy are △H^0=（-70.1±1.5） kJ/mol and △S^0=（- 105.9±2.0） J/（mol·K） in the temperature range.
ISSN:1003-6326
DOI:10.1016/S1003-6326(07)60112-5