VISCOSITIES OF AQUEOUS BLENDED AMINES

The viscosities of aqueous mixtures of diethanolamine (DEA) + N-methyl diethanolamine (MDEA), DEA + 2-amino-2-methyl-1-propanol (AMP), and mo noethanolamine (MEA) + 2-piperidineethanol (2-PE) were measured from 3 0 degrees C to 80 degrees C. A Redlich-Kister equation for the viscosi ty deviation was applied to represent the viscosity. On the basis of t he available viscosity data for five ternary systems, MEA + MDEA + H2O , MEA + AMP + H2O, DEA + MDEA + H2O, DEA + AMP + H2O, and MEA + 2-PE H2O, a generalized set of binary parameters were determined. For the viscosity calculation of the systems tested, the overall average absol ute percent deviation is about 1.0% for a total of 499 data paints.