NIOSHTIC-2 Publications Search

Sodium zirconium oxide: molar enthalpy of formation at 298.15 K and molar heat capacity from 5 to 1168 K.

Beyer RP; Bennington KO; Brown RR

J Chem Thermodyn 1985 Jan; 17(1):11-17

https://doi.org/10.1016/0021-9614(85)90026-6

10004398

Part of the mission of the Bureau of Mines is to provide values of thermodynamic properties for minerals and related inorganic compounds. As part of this effort, the molar heat capacity of sodium zirconium oxide was measured from 5 to 305 k by adiabatic calorimetry and from 438 to 1,168 k by differential scanning calorimetry. The molar enthalpy of formation was determined by hydrofluoric-acid solution calorimetry. The molar enthalpy of formation at 298.15 K is -(1,686.3 +/-2.0) Kj.Mol-1. The values at 298.15 K of cp,m, sm(t)-sm(0) , and - gm(t)-hm(0) /t are 125.88, 125.50, and 54.88 J.K-1mol-1, respectively. These functions are also calculated from 5 to 1,170 k.

JCTDAF

19850101

OP; Journal Article

1985

OP 19-85

1

0021-9614

ALRC

The Journal of Chemical Thermodynamics

OR