ABSTRACT

The densities of ammonium perchlorate, tetraalkylammonium perchlorates, R4NClO4 (R = methyl, ethyl, propyl, and butyl) andtetrabutylammonium tetraphenylborate solutions in N,N-dimethylformamide have been measured over the whole composition range at the temperatures from 283.15 K to 333.15 K. From these densities apparent and limiting partial molar volumes of the electrolytes have been evaluated and split into respective ionic contributions. The partial molar volume for the ClO4 anion in N,Ndimethylformamide is reported for temperatures (283.15, 293.15, 298.15, 303.15, 313.15, 323.15, and 333.15) K. The effects relatedto length of alkyl chain and temperature are described and discussed in terms of solvent penetration. The volume expansibilities are calculated for T = 298.15 K and discussed

Compounds

#	Formula	Name
1	ClH4NO4	ammonium perchlorate
2	C4H12ClNO4	tetramethylammonium perchlorate
3	C8H20ClNO4	tetraethylammonium perchlorate
4	C12H28ClNO4	tetrapropylammonium perchlorate
5	C16H36ClNO4	tetrabutylammonium perchlorate
6	C40H56BN	tetrabutylammonium tetraphenylborate(1-)
7	C3H7NO	dimethylformamide
8	C4H9NO	N,N-dimethylethanamide

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	7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	VIBTUB:UFactor:4	1
POMD	8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	VIBTUB:UFactor:4	1
POMD	7 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Ratio of amount of solute to mass of solution, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	70
POMD	7 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Ratio of amount of solute to mass of solution, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	77
POMD	7 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Ratio of amount of solute to mass of solution, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	63
POMD	7 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Ratio of amount of solute to mass of solution, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	70
POMD	7 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Ratio of amount of solute to mass of solution, mol/kg - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	63
POMD	7 6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Ratio of amount of solute to mass of solution, mol/kg - 6; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	77

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Limiting partial molar volumes and expansibilities of ammonium perchlorate, tetraalkylammonium perchlorates, and tetrabutylammonium tetraphenylborate in N,N-dimethylformamide

Placzek, A.[Anna], Warminska, D.[Dorota], Grzybkowski, W.[Waclaw]

ABSTRACT