Ionic liquids (IL) are non-volatile liquids that have attracted interest for a range of applications. However, a novel group of IL analogs known as deep eutectic solvents (DES) has lately attracted a lot of interest as a flexible and practical alternative to ILs. Because they share many of the favorable characteristics of ILs while overcoming their major drawbacks, these solvents can be tailored to be effective substitutes. DESs are typically less costly, safer, more sustainable, and easier to make. The capacity to manufacture these liquids with few preparation steps is one of the most important features that allow them to be used on a large industrial scale. In this work, two new eutectic solvents were prepared by combining imidazole with monoethanolamide and menthol with PEG200. Density () and viscosity () were the two physical properties determined for the two eutectic solvents at the studied molar ratios (1:2, 1:3, and 1:4) within a temperature range of 25 to 65 ºC. The experimental data was regressed as a function of temperature and molar ratio. For the two studied systems of imidazole-MEA and menthol-PEG 200 the measured density varied within the ranges (1.042- 0.999 g/cm3 ) and (1.039– 1.04g/cm3 ), respectively. While viscosity varied within the ranges of (19.7– 3.21cP) and (40– 6.08 cP), respectively. The CO2 solubility was investigated for the two DESs in different molar ratios under the pressure of 10 bar and a temperature range of 30-60 ºC. The highest CO2 loading for imidazole-MEA was 0.711 (mole CO2/mole DES) at 30 ºC, 10 bar and molar ratio of 1:4. For the menthol-PEG 200 system, the highest CO2 loading of 0.598 (mole CO2/mole DES) was achieved at 30 ºC, 10 bar and molar ratio of 1:2. From the results obtained, it was observed that the solubility of CO2 in these two DESs has a strong direct relationship with pressure while inversely proportional to temperature. To monitor the CO2 absorption behavior and detect any possible enhancement of chemical absorption, the prepared eutectic solvents were also combined with water. Experimental investigations revealed that both eutectic solvents' CO2 absorption capability is influenced by pressure and water content. For the imidazole MEA eutectic mixture, the CO2 absorption capacity was almost doubled when a 50% water content was used. Using imidazole-MEA and menthol-PEG200 mixed with 50 %v water, the optimum CO2 absorption capacity of 1.357 and 0.7468 mol CO2/mol DES at the operating conditions of 30 ºC and 10 bar. Solubility of CO2 was verified in terms of Henry's constant. The calculated Henry's constant (Hx) for the imidazole-MEA system (Hx =4.35−5.02 MPa) was found to be lower than that for the menthol-PEG200 system (Hx= 4.76- 5.11MPa). Calculated Henry's constants at 30 ºC were compared to to other DESs and ILs indicates that the DES systems suggested in this work portrayed better CO2 absorption capability. In addition, the absorption enthalpy of CO2 was also calculated. Results revealed the strong interaction between CO2 and the two DES affirmed by the negative enthalpy value. This fundamental study leaves the door open for more in-depth investigations involving these two novel DES systems. Special attention can be given to applications involving carbon dioxide capture and those involving chemical reaction and extraction technological processes.