KINETIC-PARAMETERS OF THERMAL DEHYDRATION AND DECOMPOSITION FROM THERMOANALYTICAL CURVES OF ZINC DL-LACTATE

Authors
VERMA RK VERMA L CHANDRA M VERMA BP
Citation
Rk. Verma et al., KINETIC-PARAMETERS OF THERMAL DEHYDRATION AND DECOMPOSITION FROM THERMOANALYTICAL CURVES OF ZINC DL-LACTATE, Journal of the Indian Chemical Society, 75(3), 1998, pp. 162-164
Citations number
12
Categorie Soggetti
Chemistry
Journal title
Journal of the Indian Chemical Society → ACNP
ISSN journal
00194522
Volume
75
Issue
3
Year of publication
1998
Pages
162 - 164
Database
ISI
SICI code
0019-4522(1998)75:3<162:KOTDAD>2.0.ZU;2-P
Abstract
Zinc dl-lactate trihydrate undergoes dehydration followed by single st ep decomposition to ZnO when heated at the rate of 1/6 K s(-1) in air. Kinetic parameters of the two steps have been approximated employing Freeman-Carroll, Horowitz-Metzger, Coats-redfern, Fuoss, Karkhanavala- Dharwadkar and Zsako methods. The latter four methods furnished more c onsistent values. Both the steps follow Avrami-Erofeev laws.