ABSTRACT

In this present work, a thermophysical property characterization of aqueous solution of tris(hydroxymethyl) aminomethane (TRIS), a biological buffer, was done. The investigated properties were refractive index, density, and electrolytic conductivity. These properties were measured for temperatures up to 353.15 K (at normal atmospheric condition) and for the entire composition range where TRIS is still soluble in water. The measured properties were reported as functions of temperature and composition. A modified form of the Vogel Tamman Fulcher equation which leads to an Arrhenius-type asymptotic exponential function was used to generally correlate the temperature and compositional dependence of the considered properties and satisfactory results were obtained.

Compounds

#	Formula	Name
1	C4H11NO3	2-amino-2-(hydroxymethyl)-1,3-propanediol
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	1 2	Electrical conductivity, S/m ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Alternating current cell with electrodes	49
POMD	1 2	Refractive index (Na D-line) ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	56
POMD	1 2	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	49

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermophysical property characterization of tris(hydroxymethyl)aminomethane

Soriano, A. N.[Allan N.], Cabahug, D. I. V.[Denise Irene V.], Li, M. -H.[Meng-Hui]

ABSTRACT