ABSTRACT

Electrical conductances of tetraalkylammonium iodides, R4NI (R = butyl to heptyl), in different mass % (20 to 80) of carbon tetrachloride (CCl4) + nitrobenzene (PhNO2) have been measured at 298.15 K. Limiting molar conductances ?0, association constants KA, and cosphere diameter R for ion pair formation in the mixed solvent mixtures have been evaluated using the Lee-Wheaton conductivity equation. However, the deviation of the conductometric curves (? versus ?c) from linearity for the electrolytes in 80 mass % of CCl4 + PhNO2 indicated triple ion formation, and therefore corresponding conductance data have been analyzed by the Fuoss-Kraus theory of triple ions. Limiting ionic molar conductances ?0+- have been calculated by the reference electrolyte method along with a numerical evaluation of ion pair and triple ion formation constants (KP ? KAand KT); the results have been discussed in terms of solvent properties and configurational theory.

Compounds

#	Formula	Name
1	CCl4	tetrachloromethane
2	C6H5NO2	nitrobenzene
3	C16H36IN	tetrabutylammonium iodide
4	C20H44IN	tetrapentylammonium iodide
5	C24H52IN	tetrahexylammonium iodide
6	C28H60IN	1-heptanaminmium, N,N,N-triheptyl-, 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	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	CAPTUB::UFactor:12	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	CAPTUB::UFactor:12	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	1 2	Viscosity, Pa*s ; Liquid	Mass fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:12	6
POMD	1 2	Mass density, kg/m3 ; Liquid	Mass fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Pycnometric method	6
POMD	1 2 3	Molar conductivity, S*m2/mol ; Liquid	Solvent: Mass fraction - 1; Liquid Amount concentration (molarity), mol/dm3 - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	dip-type immersion conductivity cell	80
POMD	1 2 4	Molar conductivity, S*m2/mol ; Liquid	Solvent: Mass fraction - 1; Liquid Amount concentration (molarity), mol/dm3 - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	dip-type immersion conductivity cell	76
POMD	1 2 5	Molar conductivity, S*m2/mol ; Liquid	Solvent: Mass fraction - 1; Liquid Amount concentration (molarity), mol/dm3 - 5; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	dip-type immersion conductivity cell	80
POMD	1 2 6	Molar conductivity, S*m2/mol ; Liquid	Solvent: Mass fraction - 1; Liquid Amount concentration (molarity), mol/dm3 - 6; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	dip-type immersion conductivity cell	80

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Ion Pair and Triple Ion Formation by Some Tetraalkylammonium Iodides in Binary Mixtures of Carbon Tetrachloride + Nitrobenzene

Roy, M. N.[Mahendra Nath], Roy, P. K.[Pran Kumar], Sah, R. S.[Radhey Shyam], Pradhan, P.[Prasanna], Sinha, B.[Biswajit]

ABSTRACT