Abstract
As part of our systematic study on physicochemical characterization of (glycol+amine) systems, thermophysical properties, including refractive index, density, and electrolytic conductivity measurements were carried out on aqueous systems containing glycol and 2-amino-2-hydroxymethyl-1,3-propanediol (TRIS). The glycols studied are diethylene glycol (DEG), triethylene glycol (TEG), and tetraethylene glycol (T4EG). The measurements were done over a temperature range of (298.15 to 343.15)K at normal atmospheric pressure. Different concentrations (4 to 16)% by weight TRIS or (56 to 44)% water, in a fixed amount 40% glycol were used. The influences of temperature and compositions on the measured properties are discussed and then correlated based on the equation proposed for aqueous (glycol+salt) systems. Calculated results show that the applied model is satisfactory in representing the measured properties in the aqueous systems containing the glycols and TRIS.
Published Version
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