ABSTRACT

The refractive index and density ( values of the poly (ethylene glycol) (PEG) 1500 + dipotassium tartrate + water ternary system and physical properties of PEG 1500 + water and dipotassium tartrate + water binary solutions have been measured at 298.15 K and atmospheric pressure. Moreover, the refractive index deviation ( ), viscosity deviation ( ), the apparent specific volume ( ), excess molar volume ( ) and excess Gibbs energy of activation for viscous flow ( ) were calculated from the experimental measurements to analyze the behavior of the binary solutions and the refractive index deviation ( ) and excess molar volume ( ) of the ternary solution. These results were fitted to Redlich Kister polynomial and Cibulka Equations to estimate the interaction parameters. Adjustments were made to the refractive index and density to obtain a third-order polynomial expansion model, and a secondorder equation, respectively. The intermolecular interactions between the mixing components were demonstrated by the obtained data from the calculated functions.

Compounds

#	Formula	Name
1	C4H4K2O6	dipotassium L-tartrate
2	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	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Falling or rolling sphere viscometry	1
POMD	1 2	Refractive index (Na D-line) ; Liquid	Mass fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	11
POMD	1 2	Mass density, kg/m3 ; Liquid	Mass fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	1 2	Viscosity, Pa*s ; Liquid	Mass fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	11

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

Density, Viscosity, Refractive Index, and Excess Properties of Binary and Ternary Solutions of Poly(ethylene glycol), Water, and Dipotassium Tartrate at 298.15 K and Atmospheric Pressure

Barani, Alireza, Pirdashti, Mohsen, Rostami, Abbas Ali

ABSTRACT