THERMODYNAMIC PROPERTIES OF K2ZNCL4 BETWEEN 5 AND 350 K

Authors
VANMILTENBURG JC NOIRET I HEDOUX A
Citation
Jc. Vanmiltenburg et al., THERMODYNAMIC PROPERTIES OF K2ZNCL4 BETWEEN 5 AND 350 K, Thermochimica acta, 239, 1994, pp. 33-40
Citations number
14
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
239
Year of publication
1994
Pages
33 - 40
Database
ISI
SICI code
0040-6031(1994)239:<33:TPOKB5>2.0.ZU;2-B
Abstract
The low-temperature heat capacities of K2ZnCl4 were measured between 5 and 350 K. A phase transition with a heat effect of 30 J mol-1 was fo und at 144 K. Between the transition temperature and 210 K, the sample shows a slow transformation which is probably related to the distorti ons of the ZnCl4 tetrahedra. This is in accordance with Raman and DSC experiments. The thermodynamic properties of a compound are given at r ounded temperatures.