Thermodynamic properties of ammonium halogen stannates I. Heat capacity and thermodynamic functions of deuterated ammonium hexachlorostannate (ND4)2SnCl6 from 5.9 to 347 K

Abstract

The heat capacity of deuterated ammonium hexachlorostannate (ND4)2SnCl6 was measured from 5.9 to 347 K by adiabatic calorimetry. The heat capacity is characterized by a [lambda]-shaped anomaly that reaches its maximum Cp,m [approximate] 53[middle dot]R (R = 8.31451 J[middle dot]K-1[middle dot]mol-1) at approximately 244 K. The value of [Delta]Smo for the anomaly is 0.48[middle dot]R. Values of the standard thermodynamic quantities are tabulated to 350 K.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/28819/1/0000653.pd