Journal of Chemical and Engineering Data, Vol.51, No.6, 2242-2245, 2006
Density and viscosity of aqueous solutions of (2-piperidineethanol plus piperazine) from (288 to 333) K and surface tension of aqueous solutions of (N-methyldiethanolamine plus piperazine), (2-amino-2-methyl-1-propanol plus piperazine), and (2-piperidineethanol plus piperazine) from (293 to 323) K
The densities and viscosities of aqueous blends of 2- piperidineethanol ( 2- PE) with piperazine ( PZ) at ( 288, 293, 298, 303, 308, 313, 318, 323, 328, and 333) K as well as the surface tension of aqueous blends of PZ with N- methyldiethanolamine, 2- amino- 2- methyl- 1- propanol, and 2- PE at ( 293, 298, 303, 308, 313, 318, and 323) K have been measured. The total amine mass fraction in all solutions was kept within 30 % in view of recent interest in using concentrated amine solutions in gas treating. Correlations for the density and viscosity of the ternary mixtures are presented as a function of temperature and amine concentration.