Heat capacities and thermodynamic functions of uranovanadates M-II(VUO6)(2)center dot nH(2)O (M-II = Mg, Ca, Sr, Ba, Pb)

Authors
Karyakin, NV Chernorukov, NG Suleimanov, EV Trostin, VL Alimzhanov, MI Razuvaeva, EA
Citation
Nv. Karyakin et al., Heat capacities and thermodynamic functions of uranovanadates M-II(VUO6)(2)center dot nH(2)O (M-II = Mg, Ca, Sr, Ba, Pb), RUSS J G CH, 69(12), 1999, pp. 1857-1860
Citations number
13
Categorie Soggetti
Chemistry
Journal title
RUSSIAN JOURNAL OF GENERAL CHEMISTRY
ISSN journal
10703632 → ACNP
Volume
69
Issue
12
Year of publication
1999
Pages
1857 - 1860
Database
ISI
SICI code
1070-3632(199912)69:12<1857:HCATFO>2.0.ZU;2-O
Abstract
The isobaric heat capacitities of crystalline uranovanadates Ca(VUO6)(2). 8 H(2)O and Ba(VUO6)(2). 4H(2)O in the 10-300 K range and Mg(VUO6)(2). 5H(2)O , Ca(VUO6)(2). 5H(2)O, Sr(VUO6)(2). 5H(2)O, Pb(VUO6)(2). 5H(2)O, and Ba(VUO 6)(2) in the 80-300 K range were measured by adiabatic vacuum calorimetry. The H-0(T)-H-0(0), S-0(T), and G(0)(T) - H-0(T) functions of these compound s in the 0-300 K range were determined. The standard entropies and Gibbs en ergies of formation of uranovanadates at 298.15 K were calculated.