Thermal properties and thermochemistry of lanthanide chromates |
| |
| Authors: | Yu L Suponitskii |
| |
| Institution: | (1) D. I. Mendeleev Russian University of Chemical Technology, 9 Miusskaya pl., 125047 Moscow, Russian Federation |
| |
| Abstract: | The behavior of chromates Ln2(CrO4)3·7H2O and Rb5Ln(CrO4)2 (Ln = La, Pr, Nd, Sm, and Gd) was studied by derivatography as they were heated in air in a temperature interval of 300–1470 K. The high temperature enthalpies of LaCrO3 and YCrO3 at 865–1350 K and enthalpies of solution of La2(CrO4)3·7H2O in a solution of nitric acid at 298 K were measured by calorimetric methods. The standard enthalpies of formation were calculated for some compounds of composition Ln2(CrO4)3·2H2O and LnCrO3.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2, pp. 290–295, February, 2005. |
| |
| Keywords: | chromites chromates lanthanides thermochemistry enthalpy thermal analysis |
| 本文献已被 SpringerLink 等数据库收录！ |
|
