ABSTRACT

The densities of dilute solutions of three electrolytes (NaI, NaBPh4 and Ph4PI) in methanol mixtures with propylene carbonate (PC), N,N-dimethylformamide (DMF) and acetonitrile (AN) have been measured by Anton Paar 5000 densimeter at T = 298.15 K. Apparent molar volumes, V.phi. have been determined at an electrolyte concentration of 0.06 mol kg 1 over the entire mixed solvent composition range. Single ionic apparent molar volumes of transfer, .Delta.tV.phi. (ion) were calculated using the tetraphenylphosphonium tetraphenylborate (TPTB) assumption. The results are discussed in terms of ionic preferential solvation.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C2H3N	acetonitrile
3	C4H6O3	4-methyl-1,3-dioxolan-2-one
4	C3H7NO	dimethylformamide
5	INa	sodium iodide
6	C24H20BNa	sodium tetraphenylboron
7	C24H20IP	tetraphenylphosphonium iodide

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	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	2	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1 2	Mass density, kg/m3 ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	29
POMD	1 4	Mass density, kg/m3 ; Liquid	Mole fraction - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	26
POMD	1 3	Mass density, kg/m3 ; Liquid	Mole fraction - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	26
POMD	1 2 5	Apparent molar volume, m3/mol ; Liquid	Solvent: Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Liquid	Calculated with densities of this investigation	11
POMD	1 2 6	Apparent molar volume, m3/mol ; Liquid	Solvent: Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 6; Liquid	Liquid	Calculated with densities of this investigation	11
POMD	1 2 7	Apparent molar volume, m3/mol ; Liquid	Solvent: Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 7; Liquid	Liquid	Calculated with densities of this investigation	11
POMD	1 4 5	Apparent molar volume, m3/mol ; Liquid	Solvent: Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Liquid	Calculated with densities of this investigation	10
POMD	1 4 6	Apparent molar volume, m3/mol ; Liquid	Solvent: Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 6; Liquid	Liquid	Calculated with densities of this investigation	10
POMD	1 4 7	Apparent molar volume, m3/mol ; Liquid	Solvent: Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 7; Liquid	Liquid	Calculated with densities of this investigation	10
POMD	1 3 5	Apparent molar volume, m3/mol ; Liquid	Solvent: Mole fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 5; Liquid	Liquid	Calculated with densities of this investigation	10
POMD	1 3 6	Apparent molar volume, m3/mol ; Liquid	Solvent: Mole fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 6; Liquid	Liquid	Calculated with densities of this investigation	10
POMD	1 3 7	Apparent molar volume, m3/mol ; Liquid	Solvent: Mole fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 7; Liquid	Liquid	Calculated with densities of this investigation	10
POMD	1 5	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 5; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	2 5	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 5; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	1 6	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 6; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	2 6	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 6; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	1 7	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 7; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	2 7	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 7; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	4 5	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 5; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	4 6	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 6; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	4 7	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 7; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	3 5	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 5; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	3 6	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 6; Liquid		Liquid	Calculated with densities of this investigation	1
POMD	3 7	Apparent molar volume, m3/mol ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid Molality, mol/kg - 7; Liquid		Liquid	Calculated with densities of this investigation	1

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Ionic molar volumes in methanol mixtures with acetonitrile, N,N-dimethylformamide and propylene carbonate at T = 298.15 K

Pietrzak, A., Piekarski, H.

ABSTRACT