Densities of Water + Diethanolamine + Methanol and Water + N-Methyldiethanolamine + Methanol at Temperatures Ranging from (283.15 to 353.15) K

Abstract

Two vibrating tube densimeters have been used to measure the densities of two mixturesswater + diethanolamine + methanol and water + N-methyldiethanolamine + methanolsin the temperature range (283 to 353) K. The alkanolamines and methanol contents are respectively (between 20 and 50 and between 20 and 60) mass %. The experimental results have been correlated using the Redlich-Kister equation for the excess volume. A set of parameters for the Redlich-Kister equation has been determined using the densities of pure compounds and of binary systems available in the literature. The methodology has been extended to density calculations dealing with hybrid solvents.

Volumetric properties of binary mixtures of dimethyl sulfoxide with amines from (293.15 to 363.15)K

“…To correlate the density of liquid mixture, a Redlich-Kister type equation [28,29] for excess molar volume was applied. For a binary system, the Redlich-Kister type equation has the following expression:…”

Thermophysical Properties of 1-Octyl-3-Methylimidazolium Acetate with Organic Solvents

“…e combined standard uncertainty of excess molar volume is less than 2.24 × 10 −7 m 3 mol −1 . e Redlich-Kister equation is introduced to fit excess molar volume [41,42]:…”

Absorption of H2S and CO2in Alkanolamine Aqueous Solution: Experimental Data and Modelling with the Electrolyte-NRTL Model

“…The solvent volume is determined from Amararène et al (2003) and the acid gas volume is estimated from density measurements of the water + alkanolamine solvent (Rinker et al, 2000Weiland et al, 1998 charged with various amounts of acid gas; -we assume that Raoult's law can be applied on the pseudo binary (solvent + acid gas):…”