ABSTRACT

Densities at T = (293.15, 298.15, 303.15, 313.15, 323.15, and 333.15) K and sound velocities at T = 298.15 K of tetraphenylphosphonium bromide, sodium tetraphenylborate, sodium bromide, and sodium perchlorate in dimethylsulfoxide have been measured over the composition range from (0 to 0.3) mol kg-1. From these data, apparent molar volumes and apparent molar isentropic compressibilities at infinite dilution as well as the expansibilities have been evaluated. The results have been discussed in terms of employing tetraphenylphosphonium tetraphenylborate as a reference electrolyte in splitting the limiting apparent molar volumes and apparent molar isentropic compressibilities into ionic contributions.

Compounds

#	Formula	Name
1	C24H20BrP	tetraphenylphosphorane bromide
2	C24H20BNa	sodium tetraphenylboron
3	BrNa	sodium bromide
4	ClNaO4	sodium perchlorate
5	C2H6OS	dimethyl sulfoxide

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	5 1	Speed of sound, m/s ; Liquid	Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	11
POMD	5 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	72
POMD	5 2	Speed of sound, m/s ; Liquid	Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	11
POMD	5 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	72
POMD	5 3	Speed of sound, m/s ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	10
POMD	5 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	78
POMD	5 4	Speed of sound, m/s ; Liquid	Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	11
POMD	5 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	72

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Apparent molar volumes and compressibilities of selected electrolytes in dimethylsulfoxide

Warminska, D.[Dorota], Grzybkowski, W.[Waclaw]

ABSTRACT