ABSTRACT

Apparent molar volumes V and apparent molar heat capacities Cp,were determined at the pressure 0.35 MPa for aqueous solutions of magnesium nitrate Mg(NO3)2 at molalities m = (0.02 to 1.0) mol Ae kg-1, strontium nitrate Sr(NO3)2 at m = (0.05 to 3.0) mol Ae kg-1, and manganese nitrate Mn(NO3)2 at m = (0.01 to 0.5) mol Ae kg-1. Our V/ values were calculated from solution densities obtained at T = (278.15 to 368.15) K using a vibrating-tube densimeter, and our Cp, values were calculated from solution heat capacities obtained at T = (278.15 to 393.15) K using a twin fixed-cell, differential, temperature-scanning calorimeter. Empirical functions of m and T were fitted to our results, and standard state partial molar volumes and heat capacities were obtained over the ranges of T investigated.

Compounds

#	Formula	Name
1	MgN2O6	magnesium nitrate
2	N2O6Sr	strontium nitrate
3	MnN2O6	manganese nitrate
4	H2O	water

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	4 1	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	LDSC:UFactor:0.2	216
POMD	4 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:2	110
POMD	4 2	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	LDSC:UFactor:0.2	216
POMD	4 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:2	99
POMD	4 3	Molar heat capacity at constant pressure, J/K/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	LDSC:UFactor:0.2	192
POMD	4 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:2	55

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Apparent molar volumes and apparent molar heat capacities of aqueous magnesium nitrate, strontium nitrate, and manganese nitrate at temperatures from 278.15 K to 393.15 K and at the pressure 0.35 MPa

Jones, J. S., Ziemer, S. P., Brown, B. R., Woolley, E. M.

ABSTRACT