Density and Viscosity of Partially Carbonated Aqueous Solutions Containing a Tertiary Alkanolamine and Piperazine at Temperatures between 298.15 and 353.15 K Patzschke, C.F.; Zhang, J.; Fennell, P.S.; Trusler, J.P.M.; Journal of Chemical & Engineering Data 2017, 62, 2075-2083