ABSTRACT

Density and viscosity data for the binary system diethylene glycol dimethyl ether (DEGDME) (1) + water (2) were measured at T = (293.15, 298.15, 303.15, 308.15, and 313.15) K under atmospheric pressure. Based on the experimental data, excess molar volumes (VmE), and viscosity deviation (??) values were calculated. The VmE values are negative, while the ?? values are positive over the entire composition range. The calculated results were fitted to a Redlich Kister equation to obtain the coefficients and estimate the standard deviations. Based on the kinematic viscosity data, enthalpy of activation for the viscous flow, entropy of activation for the viscous flow, and Gibbs energies of activation of the viscous flow were also calculated. Meanwhile, based on Fourier transform infrared spectral changes and UV vis spectral changes for the binary system DEGDME + H2O with varied concentrations, intermolecular interaction of DEGDME with H2O was determined.

Compounds

#	Formula	Name
1	H2O	water
2	C6H14O3	2,5,8-trioxanonane

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	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	5
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	5
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	5
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	5
POMD	2 1	Mass density, kg/m3 ; Liquid	Mole fraction - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	80
POMD	2 1	Viscosity, Pa*s ; Liquid	Mole fraction - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	80

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

Excess Properties and Spectral Investigation for the Binary System Diethylene Glycol Dimethyl Ether + Water at T = (293.15, 298.15, 303.15, 308.15 and 313.15) K

Xu, Q.[Qiuxia], Sun, S.[Shaoyang], Lan, G.[Gongjia], Xiao, J.[Jianbai], Zhang, J.[Jianbin], Wei, X.[Xionghui]

ABSTRACT