Thermophysical properties of aqueous piperazine and aqueous (N-methyldiethanolamine + piperazine) solutions at temperatures (298.15 to 338.15) K

A., Muhammad and M.I.A., Mutalib and T., Murugesan and A., Shafeeq (2009) Thermophysical properties of aqueous piperazine and aqueous (N-methyldiethanolamine + piperazine) solutions at temperatures (298.15 to 338.15) K. [Citation Index Journal]

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In the present work, thermophysical properties such as density (ρ), dynamic viscosity (η), refractive index (nD), and surface tension (σ) of aqueous piperazine (PZ) solutions with mass fractions (100w = 1.74, 5.16, 10.35) have been measured from temperatures (298.15 to 338.15) K. All of these properties have also been measured for the aqueous blends of N-methyldiethanolamine (MDEA) and piperazine (PZ) with mass fractions {100(w1/w2)= 32.28/1.74, 32.28/5.16, 32.28/10.35, 48.80/1.74, 48.80/5.16, 48.80/10.35)} for the entire temperature range. The limit of PZ solubility in water was measured by the addition of a known quantity of anhydrous PZ (solid crystals) in 20 mL of distilled water at temperatures (278 to 343) K with a regular interval of 5 K. The experimental values of the studied physical properties have been compared with the literature and also correlated as a function of temperature. The coefficients of thermal expansion (αp) values have been calculated from their experimental density data using an empirical correlation. A thermogravimetric analyzer (TGA) has been used to explore the thermal stability of the studied solvent systems at a heating rate of 10 °C• min-1. © 2009 American Chemical Society.

Item Type:Citation Index Journal
Uncontrolled Keywords:Aqueous blends; Coefficients of thermal expansions; Density data; Distilled water; Dynamic viscosities; Empirical correlations; Experimental values; Mass fraction; N-methyldiethanolamine; Solid crystals; Solvent system; Temperature range; Thermal stability; Thermo-physical property; Thermogravimetric analyzers; Nanofluidics; Refractive index; Surface tension; Thermodynamic stability; Thermal expansion
Subjects:T Technology > TP Chemical technology
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:595
Deposited By: Prof Dr Thanabalan Murugesan
Deposited On:09 Mar 2010 02:30
Last Modified:19 Jan 2017 08:25

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