US EPA

1572189 

Journal Article 

Thermodynamic properties of LiNO3-NaNO3-KNO3-2KNO(3)center dot Mg(NO3)(2) system 

Wang, Tao; Mantha, D; Reddy, RG 

2013 

1 

Thermochimica Acta
ISSN: 0040-6031
EISSN: 1872-762X 

551 

92-98 

10.1016/j.tca.2012.09.035 

WOS:000313541900015 

A novel low melting eutectic salt was predicted in the LiNO3-NaNO3-KNO3-2KNO(3)center dot Mg(NO3)(2) quaternary system using thermodynamic modeling. The melting point of the eutectic salt was predicted to be 374.90 K. Differential scanning calorimetry (DSC) was used to experimentally determine the melting point and specific heat capacity of the quaternary system. The mixture was measured to be completely melted at 373.90 +/- 0.78 K which is in an excellent agreement with the predicted value. The measured heat capacity data as function of temperature are fit to polynomial function. Subsequently, the thermodynamic properties such as enthalpy, entropy and Gibbs energies of this novel quaternary eutectic salt were deduced as function of temperature. (C) 2012 Published by Elsevier B.V. 

DSC; LiNO3-NaNO3-KNO3-2KNO3 center dot Mg(NO3)(2) quaternary system; Melting point; Heat capacity; Thermodynamic properties