Below the room temperature measurements of solubilities in ester absorbents for CO2 capture was written by Li, Yun;Liu, Qing;Huang, Weijia;Yang, Jie. And the article was included in Journal of Chemical Thermodynamics in 2018.HPLC of Formula: 106-73-0 The following contents are mentioned in the article:
Six ester absorbents were selected for CO2 capture, such as Me benzoate, Me heptanoate, Et hexanoate, Bu butyrate, tri-Et phosphate and tri-Bu phosphate. CO2 solubilities in these absorbents were determined under temperatures of 273.15-283.15 K, and pressures up to 1.2 MPa. Henrys constants of CO2 + the selected absorbent systems at 273.15 K and 283.15 K were calculated and compared with those at higher temperature It seemed that decreasing the absorption temperature is obviously beneficial for enhancing absorption performance. In order to assess the absorption capacity for different phys. absorbents, Henrys constants and volumetric solubilities of the selected absorbents were compared with ionic liquids, common solvents and the selected absorbents in our previous work. The result showed that tri-Bu phosphate and tri-Et phosphate were found to be relatively good absorbents by mole and volumetric fraction resp., and they have potential value for CO2 capture. Moreover, thermodn. properties such as entropy of solution, enthalpy of solution and Gibbs free energy of solution for the selected systems were calculated and assessed to study the absorption behavior. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0HPLC of Formula: 106-73-0).
Methyl heptanoate (cas: 106-73-0) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. HPLC of Formula: 106-73-0
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics