ABSTRACT

In the present work the temperature dependences of trisodium dilead tris(sulfate(VI)) chloride heat capacity have been measured for the first time in the range from 6 to 336 K. The experimental data were used to calculate standard thermodynamic functions, namely the heat capacity C p(T), enthalpy H (T) - H (0), entropy S (T) - S (0) and Gibbs function G (T) - H (0), for the range from T - 0-336 K. The differential thermal analysis was applied to measure temperature of incongruent melting of compound under study. The high-temperature X-ray diffraction was used for the determining thermal expansion coefficients.

Compounds

#	Formula	Name
1	ClNa3O12Pb2S3	lead sodium chloride sulfate (Na3Pb2Cl(SO4)3)

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	41
POMD	1	Molar enthalpy, kJ/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	41
POMD	1	Molar entropy, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	41
POMD	1	Molar heat capacity at constant pressure, J/K/mol ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	Vacuum adiabatic calorimetry	233
POMD	1	Mass density, kg/m3 ; Crystal	Temperature, K; Crystal	Pressure, kPa; Crystal	Crystal	X-ray diffraction	13

Thermodynamics Research Center / ThermoML | Thermochimica Acta

Low-temperature heat capacity and thermal expansion of synthetic caracolite Na3Pb2(SO4)3Cl

Knyazev, A. V., Bulanov, E. N., Smirnova, N. N., Korokin, V. Z., Shushunov, A. N., Blokhina, A. G.

ABSTRACT