ABSTRACT

In this present work, a thermophysical property characterization of aqueous ternary system containing n-tris-[hydroxymethyl]methyl-3-aminopropanesulfonic acid (TAPS) and glycol was done. Thermophysical properties, including refractive index, density, and electrolytic conductivity, measurements were considered. The considered glycols are propylene glycol (PG), dipropylene glycol (DPG), and tripropylene glycol (TPG). The measurements were done over a temperature range of 298.15 to 343.15 K and at normal atmospheric pressure. Different concentrations (4 to 16 % by weight TAPS or 56 to 44 % water, in a fixed amount of glycol 40 %) were used. The effects of temperature and compositions on the measured properties were discussed and then correlated based on the equation proposed for aqueous salt-glycol systems. Calculation results show that the applied model was satisfactory in representing the measured properties in the aqueous ternary systems containing TAPS and considered glycols.

Compounds

#	Formula	Name
1	C3H8O2	1,2-propanediol
2	H2O	water
3	C7H17NO6S	3-[tris(hydroxymethyl)methylamino]-1-propanesulfonic acid
4	C6H14O3	4-oxa-1,7-heptanediol
5	C9H20O4	2-[2-(2-hydroxypropoxy)propoxy]-1-propanol

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 2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	30
POMD	1 2 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	30
POMD	1 2 3	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	30
POMD	2 4 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	30
POMD	2 4 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	30
POMD	2 4 3	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	27
POMD	2 3 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	30
POMD	2 3 5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	30
POMD	2 3 5	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	27

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermophysical characterization of aqueous ternary system containing n-tris-[hydroxymethyl]methyl-3-amino propanesulfonic acid and glycol (PG or DPG or TPG)

De Jesus, M. B.[Medarlo B.], Soriano, A. N.[Allan N.], Li, M. -H.[Meng-Hui]

ABSTRACT