Figure 5.

(a) Viscosities η as a function of temperature T for 30 mass % aqueous MEA solutions with different CO₂ loadings α₀. This work: orange Δ, α₀ = 0; green Δ, α₀= 0.213; blue Δ, α₀ = 0.426; and — correspond to the predictions using the Weiland model with parameters from the literature²³ (Table 12). (b) Viscosity as a function of CO₂ loading at constant temperatures of 298.15 K and 313.15 K. Comparison between our data: blue Δ, and literature data: green ×,⁴⁸ purple ◇,²⁷ orange ○,²³ red □,⁵⁰ pink ○.⁵¹